diff --git a/stdafx.h b/stdafx.h
--- a/stdafx.h
+++ b/stdafx.h
@@ -9,7 +9,7 @@
 #pragma warning(disable: 4244) // conversion
 #pragma warning(disable: 4245) // conversion
 #pragma warning(disable: 4305) // 'initializing' : truncation from 'const int ' to 'char '
-#pragma warning(disable: 4018) // warning C4018: '==' : signed/unsigned mismatch
+//#pragma warning(disable: 4018) // warning C4018: '==' : signed/unsigned mismatch
 #pragma warning(disable: 4201) // nameless union
 #pragma warning(disable: 4514) // removed unref inline
 #pragma warning(disable: 4127) // constant conditional expression