diff --git a/BaseTools/toolsetup.bat b/BaseTools/toolsetup.bat
index 4fcff31879..58fd26a4b5 100755
--- a/BaseTools/toolsetup.bat
+++ b/BaseTools/toolsetup.bat
@@ -401,6 +401,8 @@ goto end
   if %ERRORLEVEL% EQU 0 (
     goto use_pip_basetools
   ) else (
+    REM reset ERRORLEVEL
+    type nul>nul
     goto use_builtin_basetools
   )