diff --git a/VERSION b/VERSION
index 73462a5..f225a78 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.5.1
+2.5.2
diff --git a/internal/pkg/core/openolt_flowmgr.go b/internal/pkg/core/openolt_flowmgr.go
index 6ad1b60..7c5d86d 100644
--- a/internal/pkg/core/openolt_flowmgr.go
+++ b/internal/pkg/core/openolt_flowmgr.go
@@ -1066,7 +1066,6 @@
 	classifier[UDPSrc] = uint32(68)
 	classifier[UDPDst] = uint32(67)
 	classifier[PacketTagType] = SingleTag
-	delete(classifier, VlanVid)
 
 	flowStoreCookie := getFlowStoreCookie(ctx, classifier, gemPortID)
 	if present := f.resourceMgr.IsFlowCookieOnKVStore(ctx, uint32(intfID), int32(onuID), int32(uniID), flowStoreCookie); present {