diff --git a/src/proto/edit.pro b/src/proto/edit.pro
index 5993959..2168cd8 100644
--- a/src/proto/edit.pro
+++ b/src/proto/edit.pro
@@ -17,6 +17,7 @@
 int comp_textwidth __ARGS((int ff));
 int stop_arrow __ARGS((void));
 void set_last_insert __ARGS((int c));
+void free_last_insert __ARGS((void));
 char_u *add_char2buf __ARGS((int c, char_u *s));
 void beginline __ARGS((int flags));
 int oneright __ARGS((void));