diff --git a/tools/testing/selftests/tc-testing/tdc.py b/tools/testing/selftests/tc-testing/tdc.py
index 5f11f5d7456e..a8981c5d0aaf 100755
--- a/tools/testing/selftests/tc-testing/tdc.py
+++ b/tools/testing/selftests/tc-testing/tdc.py
@@ -152,11 +152,11 @@ def ns_create():
         exec_cmd(cmd, False)
         cmd = 'ip link set $DEV0 up'
         exec_cmd(cmd, False)
-        cmd = 'ip -s $NS link set $DEV1 up'
+        cmd = 'ip -n $NS link set $DEV1 up'
         exec_cmd(cmd, False)
         cmd = 'ip link set $DEV2 netns $NS'
         exec_cmd(cmd, False)
-        cmd = 'ip -s $NS link set $DEV2 up'
+        cmd = 'ip -n $NS link set $DEV2 up'
         exec_cmd(cmd, False)