diff --git a/src/proto.h b/src/proto.h
index b4f544073d..1352389df3 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -296,6 +296,9 @@ int clip_mch_own_selection(VimClipboard *cbd);
 void clip_mch_request_selection(VimClipboard *cbd);
 void clip_mch_set_selection(VimClipboard *cbd);
 #endif
+#if defined(MACOS_X) && defined(FEAT_GUI)
+void macosx_fork();
+#endif
 
 #ifdef __BORLANDC__
 # define _PROTO_H
diff --git a/src/proto/os_macosx.pro b/src/proto/os_macosx.pro
deleted file mode 100644
index a14667c4f4..0000000000
--- a/src/proto/os_macosx.pro
+++ /dev/null
@@ -1,13 +0,0 @@
-/* os_macosx.pro */
-/* functions in os_macosx.m */
-
-#if defined(FEAT_CLIPBOARD) && !defined(FEAT_GUI)
-void clip_mch_lose_selection(VimClipboard *cbd);
-int clip_mch_own_selection(VimClipboard *cbd);
-void clip_mch_request_selection(VimClipboard *cbd);
-void clip_mch_set_selection(VimClipboard *cbd);
-#endif
-
-void macosx_fork(void);
-
-/* vim: set ft=c : */