diff --git a/agent/common/core.h b/agent/common/core.h
index 3ded10e..f19e3aa 100644
--- a/agent/common/core.h
+++ b/agent/common/core.h
@@ -55,6 +55,7 @@
 Status Disable_();
 Status Reenable_();
 Status GetDeviceInfo_(openolt::DeviceInfo* device_info);
+Status CreateDefaultSchedQueue_(uint32_t intf_id, const std::string direction);
 Status CreateTrafficSchedulers_(const tech_profile::TrafficSchedulers *traffic_scheds);
 Status RemoveTrafficSchedulers_(const tech_profile::TrafficSchedulers *traffic_scheds);
 Status CreateTrafficQueues_(const tech_profile::TrafficQueues *traffic_queues);