diff --git a/src/osx/cocoa/menu.mm b/src/osx/cocoa/menu.mm
index aff7a283e1..34ea162c4d 100644
--- a/src/osx/cocoa/menu.mm
+++ b/src/osx/cocoa/menu.mm
@@ -55,7 +55,10 @@
 
 @end
 
-@interface wxNSMenuController : NSObject <NSMenuDelegate>
+@interface wxNSMenuController : NSObject 
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
+    <NSMenuDelegate>
+#endif
 {
 }