diff --git a/Mac/Modules/macmodule.c b/Mac/Modules/macmodule.c
index fc726153773..9d757bce1ab 100644
--- a/Mac/Modules/macmodule.c
+++ b/Mac/Modules/macmodule.c
@@ -479,7 +479,7 @@ static struct methodlist mac_methods[] = {
 #endif
 	{"getbootvol",	mac_getbootvol}, /* non-standard */
 	{"getcwd",	mac_getcwd},
-	{"listdir",	mac_listdir},
+	{"listdir",	mac_listdir, 0},
 #ifndef CW4
 	{"lseek",	mac_lseek},
 #endif