diff --git a/src/blua/luaconf.h b/src/blua/luaconf.h
index 4a8a41723..9e2948f41 100644
--- a/src/blua/luaconf.h
+++ b/src/blua/luaconf.h
@@ -10,7 +10,13 @@
 
 #include <limits.h>
 #include <stddef.h>
+
+#ifdef _MSC_VER
+#define INT32 __int32
+#else
 #include <stdint.h>
+#define INT32 int32_t
+#endif
 
 
 /*
@@ -141,7 +147,7 @@
 ** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
 ** machines, ptrdiff_t gives a good choice between int or long.)
 */
-#define LUA_INTEGER	int32_t
+#define LUA_INTEGER	INT32
 
 
 /*
@@ -503,13 +509,13 @@
 */
 
 //#define LUA_NUMBER_DOUBLE
-#define LUA_NUMBER	int32_t
+#define LUA_NUMBER	INT32
 
 /*
 @@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
 @* over a number.
 */
-#define LUAI_UACNUMBER	int32_t
+#define LUAI_UACNUMBER	INT32
 
 
 /*