diff --git a/iot/api-client/manager/manager.py b/iot/api-client/manager/manager.py
index 72ed7aa44f0d..fb4e0a58f59f 100644
--- a/iot/api-client/manager/manager.py
+++ b/iot/api-client/manager/manager.py
@@ -755,7 +755,6 @@ def parse_command_line_args():
             help='Path to public ES256 key file.')
     parser.add_argument(
             '--gateway_id',
-            required=True,
             help='Gateway identifier.')
     parser.add_argument(
             '--member',