diff --git a/internal/distributed/proxy/service.go b/internal/distributed/proxy/service.go
index 83c601e99c..a56acd44d1 100644
--- a/internal/distributed/proxy/service.go
+++ b/internal/distributed/proxy/service.go
@@ -378,6 +378,7 @@ func (s *Server) ReleasePartitions(ctx context.Context, request *milvuspb.Releas
 	return s.proxy.ReleasePartitions(ctx, request)
 }
 
+// GetPartitionStatistics notifies Proxy to get the partitions Statistics info.
 func (s *Server) GetPartitionStatistics(ctx context.Context, request *milvuspb.GetPartitionStatisticsRequest) (*milvuspb.GetPartitionStatisticsResponse, error) {
 	return s.proxy.GetPartitionStatistics(ctx, request)
 }