diff --git a/adapters/iAdapter.go b/adapters/iAdapter.go
index 05df234..82fa644 100644
--- a/adapters/iAdapter.go
+++ b/adapters/iAdapter.go
@@ -35,8 +35,8 @@
 	Self_test_device(device *voltha.Device) error
 	Delete_device(device *voltha.Device) error
 	Get_device_details(device *voltha.Device) error
-	Update_flows_bulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups) error
-	Update_flows_incrementally(device *voltha.Device, flows *openflow_13.FlowChanges, groups *openflow_13.FlowGroupChanges) error
+	Update_flows_bulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups, flowMetadata *voltha.FlowMetadata) error
+	Update_flows_incrementally(device *voltha.Device, flows *openflow_13.FlowChanges, groups *openflow_13.FlowGroupChanges, flowMetadata *voltha.FlowMetadata) error
 	Update_pm_config(device *voltha.Device, pm_configs *voltha.PmConfigs) error
 	Receive_packet_out(deviceId string, egress_port_no int, msg *openflow_13.OfpPacketOut) error
 	Suppress_alarm(filter *voltha.AlarmFilter) error