diff --git a/Extras/Serialize/BulletFileLoader/bChunk.h b/Extras/Serialize/BulletFileLoader/bChunk.h
index befb364af..77039bcf9 100644
--- a/Extras/Serialize/BulletFileLoader/bChunk.h
+++ b/Extras/Serialize/BulletFileLoader/bChunk.h
@@ -16,9 +16,11 @@ subject to the following restrictions:
 #ifndef __BCHUNK_H__
 #define __BCHUNK_H__
 
-
 #if defined (_WIN32) && ! defined (__MINGW32__)
 	#define long64 __int64
+#elif defined (__MINGW32__)	
+	#include <stdint.h>
+	#define long64 int64_t
 #else
 	#define long64 long long
 #endif