diff --git a/internal/proxy/impl.go b/internal/proxy/impl.go
index 20a78edc74..d4cf382313 100644
--- a/internal/proxy/impl.go
+++ b/internal/proxy/impl.go
@@ -789,6 +789,7 @@ func (node *Proxy) LoadPartitions(ctx context.Context, request *milvuspb.LoadPar
 	return lpt.result, nil
 }
 
+// ReleasePartitions release specific partitions from query nodes.
 func (node *Proxy) ReleasePartitions(ctx context.Context, request *milvuspb.ReleasePartitionsRequest) (*commonpb.Status, error) {
 	if !node.checkHealthy() {
 		return unhealthyStatus(), nil