diff --git a/py-json/cv_dut_profile.py b/py-json/cv_dut_profile.py
index e1a7ad32..1013a3ce 100644
--- a/py-json/cv_dut_profile.py
+++ b/py-json/cv_dut_profile.py
@@ -127,13 +127,13 @@ class cv_dut(LFCliBase):
                  ssid_flags=0,
                  ssid_flags_mask=0xFFFFFFFF):
         req_url = "/cli-json/add_dut_ssid"
-        print("name:" + dut_name,
-              "ssid_idx:" + ssid_idx,
-              "ssid:" + ssid,
-              "passwd:" + passwd,
-              "bssid:" + bssid,
-              "ssid_flags:" + str(ssid_flags),
-              "ssid_flags_mask:" + str(ssid_flags_mask))
+        print("name: %s" % dut_name,
+              "ssid_idx: %s" % ssid_idx,
+              "ssid: %s" % ssid,
+              "passwd: %s" % passwd,
+              "bssid: %s" % bssid,
+              "ssid_flags: %s" % ssid_flags,
+              "ssid_flags_mask: %s" % ssid_flags_mask)
 
         self.json_post(req_url, {
             "name": dut_name,