diff --git a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/strategy/healthscore/DidiHealthScoreStrategy.java b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/strategy/healthscore/DidiHealthScoreStrategy.java
index fed4ccda..11adf30c 100644
--- a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/strategy/healthscore/DidiHealthScoreStrategy.java
+++ b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/strategy/healthscore/DidiHealthScoreStrategy.java
@@ -114,7 +114,7 @@ public class DidiHealthScoreStrategy extends AbstractHealthScoreStrategy {
             return Constant.INVALID_CODE;
         }
 
-        List<Integer> brokerIdList = new ArrayList<>(metadata.getBrokerIdSet().size());
+        List<Integer> brokerIdList = new ArrayList<>(metadata.getBrokerIdSet());
 
         FutureTask<Integer>[] taskList = new FutureTask[brokerIdList.size()];
         for (int i = 0; i < brokerIdList.size(); ++i) {