diff --git a/internal/querycoord/query_coord.go b/internal/querycoord/query_coord.go
index 992329d55d..2402c4703e 100644
--- a/internal/querycoord/query_coord.go
+++ b/internal/querycoord/query_coord.go
@@ -496,7 +496,7 @@ func (qc *QueryCoord) loadBalanceSegmentLoop() {
 					nodeID2SegmentInfos[nodeID] = leastSegmentInfos
 				}
 			}
-			log.Debug("loadBalanceSegmentLoop: memory usage rate of all online query node", zap.Any("mem rate", nodeID2MemUsageRate))
+			log.Debug("loadBalanceSegmentLoop: memory usage rate of all online QueryNode", zap.Any("mem rate", nodeID2MemUsageRate))
 			if len(onlineNodeIDs) <= 1 {
 				log.Warn("loadBalanceSegmentLoop: there are too few online query nodes to balance", zap.Int64s("onlineNodeIDs", onlineNodeIDs))
 				continue