diff --git a/systemdeps.h b/systemdeps.h
index 2244c6e..1a11192 100644
--- a/systemdeps.h
+++ b/systemdeps.h
@@ -70,14 +70,14 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
         #define __inline__ inline
         #if (!defined(int8_t) && !defined(_STDINT_H))
             #define __int8_t_defined
-            typedef char int8_t;
-            typedef unsigned char uint8_t;
-            typedef short int16_t;
-            typedef unsigned short uint16_t;
-            typedef long int32_t;
-            typedef unsigned long uint32_t;
-            typedef LONGLONG int64_t;
-            typedef ULONGLONG uint64_t;
+            typedef INT8 int8_t;
+            typedef UINT8 uint8_t;
+            typedef INT16 int16_t;
+            typedef UINT16 uint16_t;
+            typedef INT32 int32_t;
+            typedef UINT32 uint32_t;
+            typedef INT64 int64_t;
+            typedef UINT64 uint64_t;
         #endif
     #elif __MINGW32__   /* MINGW */
         #include <stdint.h>