diff --git a/src/proto/ex_docmd.pro b/src/proto/ex_docmd.pro
index 0a8b5d3..9a0fd2b 100644
--- a/src/proto/ex_docmd.pro
+++ b/src/proto/ex_docmd.pro
@@ -33,6 +33,7 @@
 void ex_splitview __ARGS((exarg_T *eap));
 void do_exedit __ARGS((exarg_T *eap, win_T *old_curwin));
 void do_sleep __ARGS((long msec));
+int vim_mkdir_emsg __ARGS((char_u *name, int prot));
 FILE *open_exfile __ARGS((char_u *fname, int forceit, char *mode));
 void update_topline_cursor __ARGS((void));
 void exec_normal_cmd __ARGS((char_u *cmd, int remap, int silent));