diff --git a/src/command_line_parser.rs b/src/command_line_parser.rs
index 3a30440..c7ebfa7 100644
--- a/src/command_line_parser.rs
+++ b/src/command_line_parser.rs
@@ -78,7 +78,11 @@ pub fn command() -> Command {
                 .num_args(0..)
                 .help("Service to test via the TCP protocol; can be passed multiple times"),
         )
-        .arg(Arg::new("command").num_args(0..))
+        .arg(
+            Arg::new("command")
+                .num_args(0..)
+                .help("Command to run after waiting;\nincludes command arguments, resolved against ${PATH}"),
+        )
 }
 
 #[cfg(test)]
diff --git a/src/main.rs b/src/main.rs
index 6a47d48..6d01723 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -99,7 +99,8 @@ fn test_middle_main() {
                 Usage: rust-for-it [OPTIONS] [command]...
 
                 Arguments:
-                  [command]...  
+                  [command]...  Command to run after waiting;
+                                includes command arguments, resolved against ${PATH}
 
                 Options:
                   -q, --quiet                     Do not output any status messages