diff --git a/Fltk/GUI.h b/Fltk/GUI.h
index d47a6c709d5bd680fdd5c870cea7c22c934185b1..a0d8ac2a4dcd8ab9c8afb83e362b7814bf7d77ab 100644
--- a/Fltk/GUI.h
+++ b/Fltk/GUI.h
@@ -56,8 +56,8 @@
 #define NB_BUTT_MAX    100
 #define NB_HISTORY_MAX 1000
 
-// Undefine this to get the menu inside Gmsh (like in Window/Unix)
-#define APPLE_USE_SYS_MENU
+// define this to get a true Mac menu (not inside gmsh as in Window/Unix)
+#undef APPLE_USE_SYS_MENU
 
 // The dynamic contexts