diff --git a/src/run.bat b/src/run.bat
index 309e06d507..14c1b45fda 100644
--- a/src/run.bat
+++ b/src/run.bat
@@ -90,7 +90,7 @@ go run "%GOROOT%\test\run.go" - ..\misc\cgo\stdio
 if errorlevel 1 goto fail
 echo.
 
-# cgo tests inspect the traceback for runtime functions
+:: cgo tests inspect the traceback for runtime functions
 set OLDGOTRACEBACK=%GOTRACEBACK%
 set GOTRACEBACK=2