diff --git a/py-scripts/lf_ap_auto_test.py b/py-scripts/lf_ap_auto_test.py
index 84ced2bd..410f5bac 100755
--- a/py-scripts/lf_ap_auto_test.py
+++ b/py-scripts/lf_ap_auto_test.py
@@ -335,7 +335,7 @@ def main():
     )
     cv_add_base_parser(parser)  # see cv_test_manager.py
 
-    parser.add_argument("-u", "--upstream", type=str, required=True,
+    parser.add_argument("-u", "--upstream", type=str, default=None,
                         help="Upstream port for wifi capacity test ex. 1.1.eth1")
 
     parser.add_argument("--max_stations_2", type=int, default=-1,