diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 09e12bc..fbb0f5a 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -8139,6 +8139,7 @@
 
 #if ((defined(FEAT_SESSION) || defined(FEAT_EVAL)) && defined(vim_mkdir)) \
 	|| defined(PROTO)
+/*ARGSUSED*/
     int
 vim_mkdir_emsg(name, prot)
     char_u	*name;