diff --git a/command/completions/_zsh_completions_generator.ts b/command/completions/_zsh_completions_generator.ts
index 2200f40b..a0bca054 100644
--- a/command/completions/_zsh_completions_generator.ts
+++ b/command/completions/_zsh_completions_generator.ts
@@ -110,7 +110,7 @@ function _${replaceSpecialChars(path)}() {` +
 
     let completions: string = commands
       .map((subCommand: Command) =>
-        `'${subCommand.getName()}:${
+        `'${subCommand.getName().replace(/:/g, "\\:")}:${
           subCommand.getShortDescription()
             // escape single quotes
             .replace(/'/g, "'\"'\"'")
diff --git a/command/test/integration/__snapshots__/test.ts.snap b/command/test/integration/__snapshots__/test.ts.snap
index d2cf209c..5cc4b7a1 100644
--- a/command/test/integration/__snapshots__/test.ts.snap
+++ b/command/test/integration/__snapshots__/test.ts.snap
@@ -28,6 +28,7 @@ snapshot[`command integration > should complete available commands for help comm
 stdout:
 "foo
 bar
+foo:bar
 validation-error
 help
 completions"
@@ -102,7 +103,7 @@ _completions_test() {
   }
 
   __completions_test() {
-    opts=(-h --help -V --version -g --global -m --main --color -C --colors foo bar validation-error help completions)
+    opts=(-h --help -V --version -g --global -m --main --color -C --colors foo bar foo:bar validation-error help completions)
     _completions_test_complete color
     if [[ \${cur} == -* || \${COMP_CWORD} -eq 1 ]] ; then
       return 0
@@ -166,7 +167,7 @@ _completions_test() {
   }
 
   __completions_test_bar() {
-    opts=(-h --help -g --global -f --file help)
+    opts=(-h --help -g --global help)
     
     if [[ \${cur} == -* || \${COMP_CWORD} -eq 2 ]] ; then
       return 0
@@ -174,7 +175,6 @@ _completions_test() {
     case "\${prev}" in
       -h|--help) opts=() ;;
       -g|--global) opts=(); _completions_test_complete boolean bar ;;
-      -f|--file) opts=(); _completions_test_complete string bar ;;
     esac
   }
 
@@ -189,6 +189,30 @@ _completions_test() {
     esac
   }
 
+  __completions_test_foo_bar() {
+    opts=(-h --help -g --global -f --file help)
+    
+    if [[ \${cur} == -* || \${COMP_CWORD} -eq 2 ]] ; then
+      return 0
+    fi
+    case "\${prev}" in
+      -h|--help) opts=() ;;
+      -g|--global) opts=(); _completions_test_complete boolean foo:bar ;;
+      -f|--file) opts=(); _completions_test_complete string foo:bar ;;
+    esac
+  }
+
+  __completions_test_foo_bar_help() {
+    opts=(-h --help)
+    _completions_test_complete command foo:bar help
+    if [[ \${cur} == -* || \${COMP_CWORD} -eq 3 ]] ; then
+      return 0
+    fi
+    case "\${prev}" in
+      -h|--help) opts=() ;;
+    esac
+  }
+
   __completions_test_validation_error() {
     opts=(-h --help -g --global help)
     
@@ -417,7 +441,7 @@ _foo_command() {
   }
 
   __foo_command() {
-    opts=(-h --help -V --version -g --global -m --main --color -C --colors foo bar validation-error help completions)
+    opts=(-h --help -V --version -g --global -m --main --color -C --colors foo bar foo:bar validation-error help completions)
     _foo_command_complete color
     if [[ \${cur} == -* || \${COMP_CWORD} -eq 1 ]] ; then
       return 0
@@ -481,7 +505,7 @@ _foo_command() {
   }
 
   __foo_command_bar() {
-    opts=(-h --help -g --global -f --file help)
+    opts=(-h --help -g --global help)
     
     if [[ \${cur} == -* || \${COMP_CWORD} -eq 2 ]] ; then
       return 0
@@ -489,7 +513,6 @@ _foo_command() {
     case "\${prev}" in
       -h|--help) opts=() ;;
       -g|--global) opts=(); _foo_command_complete boolean bar ;;
-      -f|--file) opts=(); _foo_command_complete string bar ;;
     esac
   }
 
@@ -504,6 +527,30 @@ _foo_command() {
     esac
   }
 
+  __foo_command_foo_bar() {
+    opts=(-h --help -g --global -f --file help)
+    
+    if [[ \${cur} == -* || \${COMP_CWORD} -eq 2 ]] ; then
+      return 0
+    fi
+    case "\${prev}" in
+      -h|--help) opts=() ;;
+      -g|--global) opts=(); _foo_command_complete boolean foo:bar ;;
+      -f|--file) opts=(); _foo_command_complete string foo:bar ;;
+    esac
+  }
+
+  __foo_command_foo_bar_help() {
+    opts=(-h --help)
+    _foo_command_complete command foo:bar help
+    if [[ \${cur} == -* || \${COMP_CWORD} -eq 3 ]] ; then
+      return 0
+    fi
+    case "\${prev}" in
+      -h|--help) opts=() ;;
+    esac
+  }
+
   __foo_command_validation_error() {
     opts=(-h --help -g --global help)
     
@@ -680,7 +727,7 @@ stdout:
 # fish completion support for completions-test v1.0.0
 
 function __fish_completions_test_using_command
-  set -l cmds __completions_test __completions_test_foo __completions_test_help __completions_test_foo_bar __completions_test_help __completions_test_bar __completions_test_help __completions_test_validation_error __completions_test_help __completions_test_help __completions_test_completions __completions_test_help __completions_test_completions_bash __completions_test_help __completions_test_completions_fish __completions_test_help __completions_test_completions_zsh __completions_test_help
+  set -l cmds __completions_test __completions_test_foo __completions_test_help __completions_test_foo_bar __completions_test_help __completions_test_bar __completions_test_help __completions_test_foo_bar __completions_test_help __completions_test_validation_error __completions_test_help __completions_test_help __completions_test_completions __completions_test_help __completions_test_completions_bash __completions_test_help __completions_test_completions_fish __completions_test_help __completions_test_completions_zsh __completions_test_help
   set -l words (commandline -opc)
   set -l cmd "_"
   for word in \$words
@@ -725,7 +772,13 @@ complete -c completions-test -n '__fish_completions_test_using_command __complet
 complete -c completions-test -n '__fish_completions_test_using_command __completions_test' -k -f -a bar
 complete -c completions-test -n '__fish_completions_test_using_command __completions_test_bar' -s h -l help -x -k -f -d 'Show this help.'
 complete -c completions-test -n '__fish_completions_test_using_command __completions_test_bar' -s g -l global -k -f -r -a '(completions-test completions complete boolean bar)' -d 'Foo option.'
-complete -c completions-test -n '__fish_completions_test_using_command __completions_test_bar' -s f -l file -k -f -r -a '(completions-test completions complete string bar)' -d '...'
+complete -c completions-test -n '__fish_completions_test_using_command __completions_test' -k -f -a help -d 'Show this help or the help of a sub-command.'
+complete -c completions-test -n '__fish_completions_test_using_command __completions_test_help' -k -f -a '(completions-test completions complete command help)'
+complete -c completions-test -n '__fish_completions_test_using_command __completions_test_help' -s h -l help -x -k -f -d 'Show this help.'
+complete -c completions-test -n '__fish_completions_test_using_command __completions_test' -k -f -a foo:bar
+complete -c completions-test -n '__fish_completions_test_using_command __completions_test_foo_bar' -s h -l help -x -k -f -d 'Show this help.'
+complete -c completions-test -n '__fish_completions_test_using_command __completions_test_foo_bar' -s g -l global -k -f -r -a '(completions-test completions complete boolean foo:bar)' -d 'Foo option.'
+complete -c completions-test -n '__fish_completions_test_using_command __completions_test_foo_bar' -s f -l file -k -f -r -a '(completions-test completions complete string foo:bar)' -d '...'
 complete -c completions-test -n '__fish_completions_test_using_command __completions_test' -k -f -a help -d 'Show this help or the help of a sub-command.'
 complete -c completions-test -n '__fish_completions_test_using_command __completions_test_help' -k -f -a '(completions-test completions complete command help)'
 complete -c completions-test -n '__fish_completions_test_using_command __completions_test_help' -s h -l help -x -k -f -d 'Show this help.'
@@ -772,7 +825,7 @@ stdout:
 # fish completion support for foo-command v1.0.0
 
 function __fish_foo_command_using_command
-  set -l cmds __foo_command __foo_command_foo __foo_command_help __foo_command_foo_bar __foo_command_help __foo_command_bar __foo_command_help __foo_command_validation_error __foo_command_help __foo_command_help __foo_command_completions __foo_command_help __foo_command_completions_bash __foo_command_help __foo_command_completions_fish __foo_command_help __foo_command_completions_zsh __foo_command_help
+  set -l cmds __foo_command __foo_command_foo __foo_command_help __foo_command_foo_bar __foo_command_help __foo_command_bar __foo_command_help __foo_command_foo_bar __foo_command_help __foo_command_validation_error __foo_command_help __foo_command_help __foo_command_completions __foo_command_help __foo_command_completions_bash __foo_command_help __foo_command_completions_fish __foo_command_help __foo_command_completions_zsh __foo_command_help
   set -l words (commandline -opc)
   set -l cmd "_"
   for word in \$words
@@ -817,7 +870,13 @@ complete -c foo-command -n '__fish_foo_command_using_command __foo_command_help'
 complete -c foo-command -n '__fish_foo_command_using_command __foo_command' -k -f -a bar
 complete -c foo-command -n '__fish_foo_command_using_command __foo_command_bar' -s h -l help -x -k -f -d 'Show this help.'
 complete -c foo-command -n '__fish_foo_command_using_command __foo_command_bar' -s g -l global -k -f -r -a '(foo-command completions complete boolean bar)' -d 'Foo option.'
-complete -c foo-command -n '__fish_foo_command_using_command __foo_command_bar' -s f -l file -k -f -r -a '(foo-command completions complete string bar)' -d '...'
+complete -c foo-command -n '__fish_foo_command_using_command __foo_command' -k -f -a help -d 'Show this help or the help of a sub-command.'
+complete -c foo-command -n '__fish_foo_command_using_command __foo_command_help' -k -f -a '(foo-command completions complete command help)'
+complete -c foo-command -n '__fish_foo_command_using_command __foo_command_help' -s h -l help -x -k -f -d 'Show this help.'
+complete -c foo-command -n '__fish_foo_command_using_command __foo_command' -k -f -a foo:bar
+complete -c foo-command -n '__fish_foo_command_using_command __foo_command_foo_bar' -s h -l help -x -k -f -d 'Show this help.'
+complete -c foo-command -n '__fish_foo_command_using_command __foo_command_foo_bar' -s g -l global -k -f -r -a '(foo-command completions complete boolean foo:bar)' -d 'Foo option.'
+complete -c foo-command -n '__fish_foo_command_using_command __foo_command_foo_bar' -s f -l file -k -f -r -a '(foo-command completions complete string foo:bar)' -d '...'
 complete -c foo-command -n '__fish_foo_command_using_command __foo_command' -k -f -a help -d 'Show this help or the help of a sub-command.'
 complete -c foo-command -n '__fish_foo_command_using_command __foo_command_help' -k -f -a '(foo-command completions complete command help)'
 complete -c foo-command -n '__fish_foo_command_using_command __foo_command_help' -s h -l help -x -k -f -d 'Show this help.'
@@ -899,6 +958,7 @@ function _completions_test() {
     commands=(
       'foo:Foo command with "'"'"'quotes'"'"'" and ([{brackets}])'
       'bar:'
+      'foo\\\\:bar:'
       'validation-error:'
       'help:Show this help or the help of a sub-command.'
       'completions:Generate shell completions.'
@@ -911,6 +971,7 @@ function _completions_test() {
     case "\${words[1]}" in
       foo) _completions_test_foo ;;
       bar) _completions_test_bar ;;
+      foo:bar) _completions_test_foo_bar ;;
       validation-error) _completions_test_validation_error ;;
       help) _completions_test_help ;;
       completions) _completions_test_completions ;;
@@ -1053,14 +1114,12 @@ function _completions_test_bar() {
   _arguments -w -s -S -C \\\\
     '(- *)'{-h,--help}'[Show this help.]' \\\\
     '(-h --help -g --global)'{-g,--global}'[Foo option.]:val:->val-boolean' \\\\
-    '(-h --help -f --file)'{-f,--file}'[...]:path:->path-string' \\\\
     '1:command:_commands' \\\\
     '*::sub command:->command_args'
 
   case "\$state" in
     command_args) _command_args ;;
     val-boolean) __completions_test_complete val boolean bar ;;
-    path-string) __completions_test_complete path string bar ;;
   esac
 }
 
@@ -1077,6 +1136,52 @@ function _completions_test_bar_help() {
     '1:command:_commands'
 }
 
+# shellcheck disable=SC2154
+(( \$+functions[_completions_test_foo_bar] )) ||
+function _completions_test_foo_bar() {
+
+  function _commands() {
+    local -a commands
+    # shellcheck disable=SC2034
+    commands=(
+      'help:Show this help or the help of a sub-command.'
+    )
+    _describe 'command' commands
+  }
+
+  function _command_args() {
+    case "\${words[1]}" in
+      help) _completions_test_foo_bar_help ;;
+    esac
+  }
+
+  _arguments -w -s -S -C \\\\
+    '(- *)'{-h,--help}'[Show this help.]' \\\\
+    '(-h --help -g --global)'{-g,--global}'[Foo option.]:val:->val-boolean' \\\\
+    '(-h --help -f --file)'{-f,--file}'[...]:path:->path-string' \\\\
+    '1:command:_commands' \\\\
+    '*::sub command:->command_args'
+
+  case "\$state" in
+    command_args) _command_args ;;
+    val-boolean) __completions_test_complete val boolean foo:bar ;;
+    path-string) __completions_test_complete path string foo:bar ;;
+  esac
+}
+
+# shellcheck disable=SC2154
+(( \$+functions[_completions_test_foo_bar_help] )) ||
+function _completions_test_foo_bar_help() {
+
+  function _commands() {
+    __completions_test_complete command command foo:bar help
+  }
+
+  _arguments -w -s -S -C \\\\
+    '(- *)'{-h,--help}'[Show this help.]' \\\\
+    '1:command:_commands'
+}
+
 # shellcheck disable=SC2154
 (( \$+functions[_completions_test_validation_error] )) ||
 function _completions_test_validation_error() {
@@ -1363,6 +1468,7 @@ function _foo_command() {
     commands=(
       'foo:Foo command with "'"'"'quotes'"'"'" and ([{brackets}])'
       'bar:'
+      'foo\\\\:bar:'
       'validation-error:'
       'help:Show this help or the help of a sub-command.'
       'completions:Generate shell completions.'
@@ -1375,6 +1481,7 @@ function _foo_command() {
     case "\${words[1]}" in
       foo) _foo_command_foo ;;
       bar) _foo_command_bar ;;
+      foo:bar) _foo_command_foo_bar ;;
       validation-error) _foo_command_validation_error ;;
       help) _foo_command_help ;;
       completions) _foo_command_completions ;;
@@ -1517,14 +1624,12 @@ function _foo_command_bar() {
   _arguments -w -s -S -C \\\\
     '(- *)'{-h,--help}'[Show this help.]' \\\\
     '(-h --help -g --global)'{-g,--global}'[Foo option.]:val:->val-boolean' \\\\
-    '(-h --help -f --file)'{-f,--file}'[...]:path:->path-string' \\\\
     '1:command:_commands' \\\\
     '*::sub command:->command_args'
 
   case "\$state" in
     command_args) _command_args ;;
     val-boolean) __foo_command_complete val boolean bar ;;
-    path-string) __foo_command_complete path string bar ;;
   esac
 }
 
@@ -1541,6 +1646,52 @@ function _foo_command_bar_help() {
     '1:command:_commands'
 }
 
+# shellcheck disable=SC2154
+(( \$+functions[_foo_command_foo_bar] )) ||
+function _foo_command_foo_bar() {
+
+  function _commands() {
+    local -a commands
+    # shellcheck disable=SC2034
+    commands=(
+      'help:Show this help or the help of a sub-command.'
+    )
+    _describe 'command' commands
+  }
+
+  function _command_args() {
+    case "\${words[1]}" in
+      help) _foo_command_foo_bar_help ;;
+    esac
+  }
+
+  _arguments -w -s -S -C \\\\
+    '(- *)'{-h,--help}'[Show this help.]' \\\\
+    '(-h --help -g --global)'{-g,--global}'[Foo option.]:val:->val-boolean' \\\\
+    '(-h --help -f --file)'{-f,--file}'[...]:path:->path-string' \\\\
+    '1:command:_commands' \\\\
+    '*::sub command:->command_args'
+
+  case "\$state" in
+    command_args) _command_args ;;
+    val-boolean) __foo_command_complete val boolean foo:bar ;;
+    path-string) __foo_command_complete path string foo:bar ;;
+  esac
+}
+
+# shellcheck disable=SC2154
+(( \$+functions[_foo_command_foo_bar_help] )) ||
+function _foo_command_foo_bar_help() {
+
+  function _commands() {
+    __foo_command_complete command command foo:bar help
+  }
+
+  _arguments -w -s -S -C \\\\
+    '(- *)'{-h,--help}'[Show this help.]' \\\\
+    '1:command:_commands'
+}
+
 # shellcheck disable=SC2154
 (( \$+functions[_foo_command_validation_error] )) ||
 function _foo_command_validation_error() {
@@ -1816,6 +1967,7 @@ stdout:
 
   \\x1b[94mfoo\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Foo command with "'quotes'" and ([{brackets}])
   \\x1b[94mbar\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
+  \\x1b[94mfoo:bar\\x1b[39m                      \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mvalidation-error\\x1b[39m             \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mhelp\\x1b[39m              \\x1b[33m[\\x1b[39m\\x1b[95mcommand\\x1b[39m\\x1b[33m]\\x1b[39m  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Show this help or the help of a sub-command.  
   \\x1b[94mcompletions\\x1b[39m                  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Generate shell completions.                   
@@ -1882,6 +2034,7 @@ stdout:
 
   \\x1b[94mfoo\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Foo command with "'quotes'" and ([{brackets}])
   \\x1b[94mbar\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
+  \\x1b[94mfoo:bar\\x1b[39m                      \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mvalidation-error\\x1b[39m             \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mhelp\\x1b[39m              \\x1b[33m[\\x1b[39m\\x1b[95mcommand\\x1b[39m\\x1b[33m]\\x1b[39m  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Show this help or the help of a sub-command.  
   \\x1b[94mcompletions\\x1b[39m                  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Generate shell completions.                   
@@ -1926,6 +2079,7 @@ stdout:
 
   \\x1b[94mfoo\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Foo command with "'quotes'" and ([{brackets}])
   \\x1b[94mbar\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
+  \\x1b[94mfoo:bar\\x1b[39m                      \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mvalidation-error\\x1b[39m             \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mhelp\\x1b[39m              \\x1b[33m[\\x1b[39m\\x1b[95mcommand\\x1b[39m\\x1b[33m]\\x1b[39m  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Show this help or the help of a sub-command.  
   \\x1b[94mcompletions\\x1b[39m                  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Generate shell completions.                   
@@ -1956,25 +2110,9 @@ stderr:
 
 snapshot[`command integration > should print the help of sub-command on validation error 1`] = `
 stdout:
-"
-\\x1b[1mUsage:\\x1b[22m   \\x1b[95mcompletions-test bar --file \\x1b[33m<\\x1b[95m\\x1b[95mpath\\x1b[95m\\x1b[33m>\\x1b[95m\\x1b[39m
-\\x1b[1mVersion:\\x1b[22m \\x1b[33m1.0.0\\x1b[39m                             
-
-\\x1b[1mOptions:\\x1b[22m
-
-  \\x1b[94m-h\\x1b[39m, \\x1b[94m--help\\x1b[39m            \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Show this help.            
-  \\x1b[94m-g\\x1b[39m, \\x1b[94m--global\\x1b[39m  \\x1b[33m<\\x1b[39m\\x1b[95mval\\x1b[39m\\x1b[33m>\\x1b[39m   \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Foo option.                
-  \\x1b[94m-f\\x1b[39m, \\x1b[94m--file\\x1b[39m    \\x1b[33m<\\x1b[39m\\x1b[95mpath\\x1b[39m\\x1b[33m>\\x1b[39m  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m ...              (\\x1b[33mrequired\\x1b[39m)
-
-\\x1b[1mCommands:\\x1b[22m
-
-  \\x1b[94mhelp\\x1b[39m  \\x1b[33m[\\x1b[39m\\x1b[95mcommand\\x1b[39m\\x1b[33m]\\x1b[39m  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Show this help or the help of a sub-command.
-
-"
+""
 stderr:
-'\\x1b[31m  \\x1b[1merror\\x1b[22m: Missing required option "--file".
-\\x1b[39m
-'
+""
 `;
 
 snapshot[`command integration > should print error message for unknown option with suggestion 1`] = `
@@ -2007,6 +2145,7 @@ stdout:
 
   \\x1b[94mfoo\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Foo command with "'quotes'" and ([{brackets}])
   \\x1b[94mbar\\x1b[39m                          \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
+  \\x1b[94mfoo:bar\\x1b[39m                      \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mvalidation-error\\x1b[39m             \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m                                               
   \\x1b[94mhelp\\x1b[39m              \\x1b[33m[\\x1b[39m\\x1b[95mcommand\\x1b[39m\\x1b[33m]\\x1b[39m  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Show this help or the help of a sub-command.  
   \\x1b[94mcompletions\\x1b[39m                  \\x1b[31m\\x1b[1m-\\x1b[22m\\x1b[39m Generate shell completions.                   
diff --git a/command/test/integration/command.ts b/command/test/integration/command.ts
index bd78e2fd..d04c60ac 100644
--- a/command/test/integration/command.ts
+++ b/command/test/integration/command.ts
@@ -51,6 +51,7 @@ const cmd = new Command()
       .reset(),
   )
   .command("bar")
+  .command("foo:bar")
   .option("-f, --file <path>", "...", { required: true })
   .command("validation-error")
   .action(() => {
diff --git a/command/test/integration/test.ts b/command/test/integration/test.ts
index e6891a47..80310d43 100644
--- a/command/test/integration/test.ts
+++ b/command/test/integration/test.ts
@@ -104,6 +104,7 @@ await snapshotTest({
           .reset(),
       )
       .command("bar")
+      .command("foo:bar")
       .option("-f, --file <path>", "...", { required: true })
       .command("validation-error")
       .action(() => {