diff --git a/py-scripts/sta_connect.py b/py-scripts/sta_connect.py
index 186a1b4e..dea1c46f 100755
--- a/py-scripts/sta_connect.py
+++ b/py-scripts/sta_connect.py
@@ -500,7 +500,6 @@ Example:
     parser.add_argument("--dut_ssid", type=str, help="DUT SSID")
     parser.add_argument("--dut_passwd", type=str, help="DUT PSK password.  Do not set for OPEN auth")
     parser.add_argument("--dut_bssid", type=str, help="DUT BSSID to which we expect to connect.")
-    parser.add_argument("--dut_security", type=str, help="DUT Security mode")
 
     args = parser.parse_args()
     if args.dest is not None:
@@ -530,8 +529,6 @@ Example:
         staConnect.dut_bssid = args.dut_bssid
     if args.dut_ssid is not None:
         staConnect.dut_ssid = args.dut_ssid
-    if args.dut_ssid is not None:
-        staConnect.dut_security = args.dut_security
 
     staConnect.run()