diff --git a/src/proto/fileio.pro b/src/proto/fileio.pro
index 0d532f4..5b71d0a 100644
--- a/src/proto/fileio.pro
+++ b/src/proto/fileio.pro
@@ -47,6 +47,8 @@
 int has_textchanged __ARGS((void));
 int has_textchangedI __ARGS((void));
 int has_insertcharpre __ARGS((void));
+int has_cmdundefined __ARGS((void));
+int has_funcundefined __ARGS((void));
 void block_autocmds __ARGS((void));
 void unblock_autocmds __ARGS((void));
 int is_autocmd_blocked __ARGS((void));