diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/ZKDelegationTokenSecretManagerImpl.java b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/ZKDelegationTokenSecretManagerImpl.java
index 3da63f80bc..4a111187ac 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/ZKDelegationTokenSecretManagerImpl.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/ZKDelegationTokenSecretManagerImpl.java
@@ -44,7 +44,7 @@ public ZKDelegationTokenSecretManagerImpl(Configuration conf) {
     try {
       super.startThreads();
     } catch (IOException e) {
-      LOG.error("Error starting threads for zkDelegationTokens ");
+      LOG.error("Error starting threads for zkDelegationTokens", e);
     }
     LOG.info("Zookeeper delegation token secret manager instantiated");
   }