Index: list.c
--- list.c.orig
+++ list.c
@@ -80,7 +80,7 @@ AddToList(name_list **list_head, char *name, char *ptr
     if (nptr == NULL)
     {
 	twmrc_error_prefix();
-	fprintf (stderr, "unable to allocate %d bytes for name_list\n",
+	fprintf (stderr, "unable to allocate %zu bytes for name_list\n",
 		 sizeof(name_list));
 	Done();
     }