diff --git a/src/os/macosx/macos.mm b/src/os/macosx/macos.mm
index 1e97f57be5..7e466aaada 100644
--- a/src/os/macosx/macos.mm
+++ b/src/os/macosx/macos.mm
@@ -1,6 +1,5 @@
 /* $Id$ */
 
-#define MAC_OS_X_VERSION_MIN_REQUIRED    MAC_OS_X_VERSION_10_3
 #include <AvailabilityMacros.h>
 
 #include <AppKit/AppKit.h>