diff --git a/runtime/plugins/linter/linter.lua b/runtime/plugins/linter/linter.lua
index 3256bad792..4abfd8c73d 100644
--- a/runtime/plugins/linter/linter.lua
+++ b/runtime/plugins/linter/linter.lua
@@ -189,7 +189,7 @@ function onExit(output, args)
             elseif col == nil then
                 hascol = false
             end
-            if basename(buf.Path) == basename(file) then
+            if filepath.Base(buf.Path) == filepath.Base(file) then
                 local bmsg = nil
                 if hascol then
                     local mstart = buffer.Loc(tonumber(col-1+coff), tonumber(line-1+loff))
@@ -212,12 +212,3 @@ function split(str, sep)
     end
     return result
 end
-
-function basename(file)
-    local sep = "/"
-    if runtime.GOOS == "windows" then
-        sep = "\\"
-    end
-    local name = string.gsub(file, "(.*" .. sep .. ")(.*)", "%2")
-    return name
-end