diff --git a/internal/querycoord/cluster.go b/internal/querycoord/cluster.go
index 8df3fe61c6..6d771df5d3 100644
--- a/internal/querycoord/cluster.go
+++ b/internal/querycoord/cluster.go
@@ -360,7 +360,7 @@ func (c *queryNodeCluster) addQueryChannel(ctx context.Context, nodeID int64, in
 		return nil
 	}
 
-	return fmt.Errorf("addQueryChannel: can't find query node by nodeID, nodeID = %d", nodeID)
+	return fmt.Errorf("addQueryChannel: can't find QueryNode by nodeID, nodeID = %d", nodeID)
 }
 func (c *queryNodeCluster) removeQueryChannel(ctx context.Context, nodeID int64, in *querypb.RemoveQueryChannelRequest) error {
 	c.RLock()