diff --git a/accton/accton_util.py b/accton/accton_util.py
index 659c3a0..39d41fb 100755
--- a/accton/accton_util.py
+++ b/accton/accton_util.py
@@ -819,6 +819,9 @@
                             ofp.oxm.exp2ByteValue(exp_type=23, value=32)))
             actions.append(ofp.action.group(action_group_id))
     else:
+            actions.append(ofp.action.set_field(
+                            ofp.oxm.exp2ByteValue(exp_type=23, value=32)))
+            actions.append(ofp.action.group(action_group_id))
             actions.append(ofp.action.copy_ttl_in())
             
     request = ofp.message.flow_add(