diff --git a/internal/distributed/proxy/service.go b/internal/distributed/proxy/service.go
index 26f67b9066..8c029c88e0 100644
--- a/internal/distributed/proxy/service.go
+++ b/internal/distributed/proxy/service.go
@@ -439,6 +439,7 @@ func (s *Server) GetDdChannel(ctx context.Context, request *internalpb.GetDdChan
 	return s.proxy.GetDdChannel(ctx, request)
 }
 
+//GetPersistentSegmentInfo notifies Proxy to get persistent segment info.
 func (s *Server) GetPersistentSegmentInfo(ctx context.Context, request *milvuspb.GetPersistentSegmentInfoRequest) (*milvuspb.GetPersistentSegmentInfoResponse, error) {
 	return s.proxy.GetPersistentSegmentInfo(ctx, request)
 }