diff --git a/build.bat b/build.bat
index 549c7c1..ebf9b4b 100644
--- a/build.bat
+++ b/build.bat
@@ -6,6 +6,8 @@ if not exist ".\build" mkdir ".\build"
 
 pushd .\build
 
-cl /Zi ..\src\main.c /Feapp.exe /Od /nologo
+set link= user32.lib
+
+cl /Zi /W4 ..\src\main.c /Feapp.exe /Od /nologo /link %link%
 
 popd .\build