diff --git a/src/proto/misc1.pro b/src/proto/misc1.pro
index b87b7ea..2b8e9d8 100644
--- a/src/proto/misc1.pro
+++ b/src/proto/misc1.pro
@@ -53,4 +53,6 @@
 dict_T *get_v_event(save_v_event_T *sve);
 void restore_v_event(dict_T *v_event, save_v_event_T *sve);
 void may_trigger_modechanged(void);
+int vim_append_digit_int(int *value, int digit);
+int vim_append_digit_long(long *value, int digit);
 /* vim: set ft=c : */