diff --git a/control/cli.py b/control/cli.py
index 3ae8cd77..12284baa 100644
--- a/control/cli.py
+++ b/control/cli.py
@@ -1853,7 +1853,7 @@ def ns_change_load_balancing_group(self, args):
 
     def get_qos_limit_str_value(self, qos_limit):
         if qos_limit == 0:
-            return "unlimited"
+            return "unset"
         else:
             return str(qos_limit)