diff --git a/include/my_global.h b/include/my_global.h
index 0458d9dcf2c..b8e9a2fdef9 100644
--- a/include/my_global.h
+++ b/include/my_global.h
@@ -737,7 +737,7 @@ typedef SOCKET_SIZE_TYPE size_socket;
 #define FLT_MAX		((float)3.40282346638528860e+38)
 #endif
 #ifndef SSIZE_MAX
-#define SSIZE_MAX (ssize_t)((~((size_t) 0)) / 2)
+#define SSIZE_MAX ((~((size_t) 0)) / 2)
 #endif
 
 #if !defined(HAVE_ISINF) && !defined(isinf)