diff --git a/pkg/techprofile/tech_profile_if.go b/pkg/techprofile/tech_profile_if.go
index ee67d2c..d3a79ce 100644
--- a/pkg/techprofile/tech_profile_if.go
+++ b/pkg/techprofile/tech_profile_if.go
@@ -36,6 +36,6 @@
 		ShapingCfg *tp_pb.TrafficShapingInfo) *tp_pb.TrafficScheduler
 	GetTrafficQueues(ctx context.Context, tp *TechProfile, Dir tp_pb.Direction) ([]*tp_pb.TrafficQueue, error)
 	GetMulticastTrafficQueues(ctx context.Context, tp *TechProfile) []*tp_pb.TrafficQueue
-	GetGemportIDForPbit(ctx context.Context, tp interface{}, Dir tp_pb.Direction, pbit uint32) uint32
+	GetGemportForPbit(ctx context.Context, tp interface{}, Dir tp_pb.Direction, pbit uint32) interface{}
 	FindAllTpInstances(ctx context.Context, techProfiletblID uint32, ponIntf uint32, onuID uint32) interface{}
 }