diff --git a/internal/querynode/global_sealed_segment_manager.go b/internal/querynode/global_sealed_segment_manager.go
index e43e84fc4c..a394311a8d 100644
--- a/internal/querynode/global_sealed_segment_manager.go
+++ b/internal/querynode/global_sealed_segment_manager.go
@@ -107,6 +107,7 @@ func (g *globalSealedSegmentManager) removeGlobalSegmentIDsByPartitionIds(partit
 	}
 }
 
+// close would free globalSealedSegmentManager
 func (g *globalSealedSegmentManager) close() {
 	g.mu.Lock()
 	defer g.mu.Unlock()