diff --git a/src/proto/if_mzsch.pro b/src/proto/if_mzsch.pro
index 522ac94..f61a087 100644
--- a/src/proto/if_mzsch.pro
+++ b/src/proto/if_mzsch.pro
@@ -15,10 +15,6 @@
 void *mzvim_eval_string __ARGS((char_u *str));
 struct Scheme_Object *mzvim_apply __ARGS((struct Scheme_Object *, int argc,
     struct Scheme_Object **));
-int mzthreads_allowed (void);
-#ifdef FEAT_GUI_KDE
-void timer_proc (void);
-void mzscheme_kde_start_timer (void);
-void mzscheme_kde_stop_timer (void);
-#endif
+int mzthreads_allowed __ARGS((void));
+void mzscheme_main __ARGS((void));
 /* vim: set ft=c : */