diff --git a/Sources/Engine/Base/Types.h b/Sources/Engine/Base/Types.h
index d0905a9..fbcc21f 100644
--- a/Sources/Engine/Base/Types.h
+++ b/Sources/Engine/Base/Types.h
@@ -221,8 +221,8 @@ typedef unsigned int        UINT;
     typedef char CHAR;
     typedef UBYTE BYTE;
     typedef unsigned short WORD;
-    typedef unsigned long  int  DWORD;
-    typedef signed long  int    LONG;
+    typedef unsigned int  DWORD;
+    typedef signed int    LONG;
     typedef void *LPVOID;
     typedef char *LPSTR;
     typedef signed long int WPARAM;