diff --git a/src/gui_mac.c b/src/gui_mac.c
index 6386b63..1677d6e 100644
--- a/src/gui_mac.c
+++ b/src/gui_mac.c
@@ -6232,7 +6232,7 @@
 #endif
 }
 
-#if (defined(FEAT_MBYTE) || defined(PROTO)) && defined(USE_CARBONKEYHANDLER)
+#if (defined(FEAT_MBYTE) && defined(USE_CARBONKEYHANDLER)) || defined(PROTO)
 /*
  * Input Method Control functions.
  */