diff --git a/src/proto/ex_cmds.pro b/src/proto/ex_cmds.pro
index b371314..324608f 100644
--- a/src/proto/ex_cmds.pro
+++ b/src/proto/ex_cmds.pro
@@ -65,4 +65,5 @@
 void set_context_in_sign_cmd(expand_T *xp, char_u *arg);
 void ex_smile(exarg_T *eap);
 void ex_drop(exarg_T *eap);
+void ex_oldfiles(exarg_T *eap);
 /* vim: set ft=c : */