diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/package-info.java b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/package-info.java
index a51e4552955..ae65c8fe675 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/package-info.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/token/package-info.java
@@ -18,7 +18,8 @@
 
 /**
  * Includes implementations of token secret managers.
- * Implementations should extend {@link AbstractDelegationTokenSecretManager}.
+ * Implementations should extend
+ * {@link org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager}.
  */
 @InterfaceAudience.Private
 @InterfaceStability.Evolving