diff --git a/lua/lspconfig/util.lua b/lua/lspconfig/util.lua
index dd84f4f8e9..7de9e8b856 100644
--- a/lua/lspconfig/util.lua
+++ b/lua/lspconfig/util.lua
@@ -107,16 +107,6 @@ M.path = (function()
     end
   end
 
-  --- @param filename string
-  --- @return boolean
-  local function is_absolute(filename)
-    if iswin then
-      return filename:match '^%a:' or filename:match '^\\\\'
-    else
-      return filename:match '^/'
-    end
-  end
-
   local function path_join(...)
     return table.concat(M.tbl_flatten { ... }, '/')
   end
@@ -175,7 +165,6 @@ M.path = (function()
   local path_separator = iswin and ';' or ':'
 
   return {
-    is_absolute = is_absolute,
     join = path_join,
     traverse_parents = traverse_parents,
     iterate_parents = iterate_parents,
diff --git a/test/lspconfig_spec.lua b/test/lspconfig_spec.lua
index a34dc40edb..5ce98ea1a5 100644
--- a/test/lspconfig_spec.lua
+++ b/test/lspconfig_spec.lua
@@ -10,19 +10,6 @@ describe('lspconfig', function()
 
   describe('util', function()
     describe('path', function()
-      describe('is_absolute', function()
-        it('is absolute', function()
-          local lspconfig = require 'lspconfig'
-          eq(true, lspconfig.util.path.is_absolute '/foo/bar' ~= nil)
-        end)
-
-        it('is not absolute', function()
-          local lspconfig = require 'lspconfig'
-          assert.is_nil(lspconfig.util.path.is_absolute 'foo/bar')
-          assert.is_nil(lspconfig.util.path.is_absolute '../foo/bar')
-        end)
-      end)
-
       describe('join', function()
         it('', function()
           local lspconfig = require 'lspconfig'