diff --git a/docs/guide/VLAN_Pbit_translation.md b/docs/guide/VLAN_Pbit_translation.md
index 21a457843eb3809ab3b5a9bcdbdb7b0662c781b6..ee6a9293cc7ad5d1bee926df45011d1e7d1906e4 100644
--- a/docs/guide/VLAN_Pbit_translation.md
+++ b/docs/guide/VLAN_Pbit_translation.md
@@ -98,7 +98,7 @@ Note: generally its a reference to Device.Ethernet.Interface.{i}. object
 obuspa -c add Device.QoS.Classification.
 obuspa -c set Device.QoS.Classification.1.Interface Device.Ethernet.Interface.3.
 obuspa -c set Device.QoS.Classification.1.EthernetPriorityCheck 3
-obuspa -c set Device.QoS.Classification.1.EthernetPriorityCheck 7
+obuspa -c set Device.QoS.Classification.1.EthernetPriorityMark 7
 obuspa -c set Device.QoS.Classification.1.Enable true
 ```