diff --git a/adapters/simulated_olt/adaptercore/device_handler.go b/adapters/simulated_olt/adaptercore/device_handler.go
index c61ca14..628e2e5 100644
--- a/adapters/simulated_olt/adaptercore/device_handler.go
+++ b/adapters/simulated_olt/adaptercore/device_handler.go
@@ -299,13 +299,13 @@
 	log.Debugw("DeleteDevice-end", log.Fields{"deviceId": device.Id})
 }
 
-func (dh *DeviceHandler) UpdateFlowsBulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups) {
+func (dh *DeviceHandler) UpdateFlowsBulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups, metadata *voltha.FlowMetadata) {
 	log.Debugw("UpdateFlowsBulk", log.Fields{"deviceId": device.Id, "flows": flows, "groups": groups})
 	// For now we do nothing with it
 	return
 }
 
-func (dh *DeviceHandler) UpdateFlowsIncremental(device *voltha.Device, flowChanges *of.FlowChanges, groupChanges *of.FlowGroupChanges) {
+func (dh *DeviceHandler) UpdateFlowsIncremental(device *voltha.Device, flowChanges *of.FlowChanges, groupChanges *of.FlowGroupChanges, metadata *voltha.FlowMetadata) {
 	log.Debugw("UpdateFlowsIncremental", log.Fields{"deviceId": device.Id, "flowChanges": flowChanges, "groupChanges": groupChanges})
 	// For now we do nothing with it
 	return
diff --git a/adapters/simulated_olt/adaptercore/simulated_olt.go b/adapters/simulated_olt/adaptercore/simulated_olt.go
index 2204a6e..29785c4 100644
--- a/adapters/simulated_olt/adaptercore/simulated_olt.go
+++ b/adapters/simulated_olt/adaptercore/simulated_olt.go
@@ -228,7 +228,7 @@
 	return errors.New("UnImplemented")
 }
 
-func (so *SimulatedOLT) Update_flows_bulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups) error {
+func (so *SimulatedOLT) Update_flows_bulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups, metadata *voltha.FlowMetadata) error {
 	if device == nil {
 		log.Warn("device-is-nil")
 		return errors.New("nil-device")
@@ -236,12 +236,12 @@
 	log.Debugw("bulk-flow-updates", log.Fields{"deviceId": device.Id, "flows": flows, "groups": groups})
 	var handler *DeviceHandler
 	if handler = so.getDeviceHandler(device.Id); handler != nil {
-		go handler.UpdateFlowsBulk(device, flows, groups)
+		go handler.UpdateFlowsBulk(device, flows, groups, metadata)
 	}
 	return nil
 }
 
-func (so *SimulatedOLT) Update_flows_incrementally(device *voltha.Device, flowChanges *openflow_13.FlowChanges, groupChanges *openflow_13.FlowGroupChanges) error {
+func (so *SimulatedOLT) Update_flows_incrementally(device *voltha.Device, flowChanges *openflow_13.FlowChanges, groupChanges *openflow_13.FlowGroupChanges, metadata *voltha.FlowMetadata) error {
 	if device == nil {
 		log.Warn("device-is-nil")
 		return errors.New("nil-device")
@@ -249,7 +249,7 @@
 	log.Debugw("incremental-flow-update", log.Fields{"deviceId": device.Id, "flowChanges": flowChanges, "groupChanges": groupChanges})
 	var handler *DeviceHandler
 	if handler = so.getDeviceHandler(device.Id); handler != nil {
-		go handler.UpdateFlowsIncremental(device, flowChanges, groupChanges)
+		go handler.UpdateFlowsIncremental(device, flowChanges, groupChanges, metadata)
 	}
 	return nil
 }