diff --git a/src/proto/ex_docmd.pro b/src/proto/ex_docmd.pro
index 816fd3f..ebc54c9 100644
--- a/src/proto/ex_docmd.pro
+++ b/src/proto/ex_docmd.pro
@@ -54,4 +54,5 @@
 int put_line __ARGS((FILE *fd, char *s));
 void dialog_msg __ARGS((char_u *buff, char *format, char_u *fname));
 char_u *get_behave_arg __ARGS((expand_T *xp, int idx));
+void ex_may_print __ARGS((exarg_T *eap));
 /* vim: set ft=c : */