diff --git a/src/proto/message.pro b/src/proto/message.pro
index 54a0a77..1c11444 100644
--- a/src/proto/message.pro
+++ b/src/proto/message.pro
@@ -18,6 +18,7 @@
 char *msg_trunc_attr(char *s, int force, int attr);
 char_u *msg_may_trunc(int force, char_u *s);
 int delete_first_msg(void);
+void check_msg_hist(void);
 void ex_messages(exarg_T *eap);
 void msg_end_prompt(void);
 void wait_return(int redraw);
diff --git a/src/proto/option.pro b/src/proto/option.pro
index 83f32aa..8aa49c0 100644
--- a/src/proto/option.pro
+++ b/src/proto/option.pro
@@ -56,6 +56,7 @@
 char *did_set_modifiable(optset_T *args);
 char *did_set_modified(optset_T *args);
 char *did_set_mousehide(optset_T *args);
+char *did_set_msghistory(optset_T *args);
 char *did_set_number_relativenumber(optset_T *args);
 char *did_set_numberwidth(optset_T *args);
 char *did_set_paste(optset_T *args);