diff --git a/tests/cmd/command-t.c b/tests/cmd/command-t.c
index 71efd398c5..7b285f921e 100644
--- a/tests/cmd/command-t.c
+++ b/tests/cmd/command-t.c
@@ -72,6 +72,7 @@ checkList(struct cmd_item *list, ...)
        list = list->next;
        el = va_arg(ap, char *);
     }
+    va_end(ap);
 
     if (el == NULL && list == NULL) {
 	ok(1, "List has correct number of elements");