diff --git a/src/system/SYSTEM.h b/src/system/SYSTEM.h
index ebd704f1..fc959e63 100644
--- a/src/system/SYSTEM.h
+++ b/src/system/SYSTEM.h
@@ -18,18 +18,16 @@ typedef unsigned char        SYSTEM_CARD8;
 
 #if (__SIZEOF_POINTER__ == 8)
   #if defined(_WIN64)
-    typedef unsigned long long SYSTEM_ADDRESS;
+    typedef unsigned long long size_t;
   #else
-    typedef unsigned long      SYSTEM_ADDRESS;
+    typedef unsigned long      size_t;
   #endif
 #else
-  typedef unsigned int         SYSTEM_ADDRESS;
+  typedef unsigned int         size_t;
 #endif
 
-
-// For FreeBSD and OpenBSD:
-typedef SYSTEM_ADDRESS size_t;
-#define _SIZE_T_DECLARED
+#define SYSTEM_ADDRESS size_t
+#define _SIZE_T_DECLARED // For FreeBSD and OpenBSD:
 
 void *memcpy(void *dest, const void *source, SYSTEM_ADDRESS size);