diff --git a/src/core/KeyGen.cpp b/src/core/KeyGen.cpp
index c54e390c..c95ab4b1 100644
--- a/src/core/KeyGen.cpp
+++ b/src/core/KeyGen.cpp
@@ -1,10 +1,6 @@
 #include "common.h"
 #include "KeyGen.h"
-#if defined _WIN32 && !defined __MINGW32__
-#include "ctype.h"
-#else
-#include <cwctype>
-#endif
+#include <ctype.h>
 
 uint32 CKeyGen::keyTable[256] = 
 {