diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java
index 88bd29bd73..dca9e2f915 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java
@@ -204,7 +204,7 @@ public ZKDelegationTokenSecretManager(Configuration conf) {
                 .retryPolicy(
                     new RetryNTimes(numRetries, sessionT / numRetries));
       } catch (Exception ex) {
-        throw new RuntimeException("Could not Load ZK acls or auth");
+        throw new RuntimeException("Could not Load ZK acls or auth: " + ex, ex);
       }
       zkClient = builder.ensembleProvider(new FixedEnsembleProvider(connString))
           .build();