diff --git a/osdep/mac/application.h b/osdep/mac/application.h
index 9d86f9e312..6b83abd248 100644
--- a/osdep/mac/application.h
+++ b/osdep/mac/application.h
@@ -47,7 +47,6 @@ struct macos_opts {
 
 // multithreaded wrapper for mpv_main
 int cocoa_main(int argc, char *argv[]);
-void cocoa_register_menu_item_action(MPMenuKey key, void* action);
 
 extern const struct m_sub_options macos_conf;
 
diff --git a/osdep/mac/application.m b/osdep/mac/application.m
index 5938180a85..0c62cf724b 100644
--- a/osdep/mac/application.m
+++ b/osdep/mac/application.m
@@ -284,12 +284,6 @@ static MP_THREAD_VOID playback_thread(void *ctx_obj)
     }
 }
 
-void cocoa_register_menu_item_action(MPMenuKey key, void* action)
-{
-    if (application_instantiated)
-        [[NSApp menuBar] registerSelector:(SEL)action forKey:key];
-}
-
 static void init_cocoa_application(bool regular)
 {
     NSApp = mpv_shared_app();