diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
index 848da7bd11..2351bb4782 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
@@ -150,8 +150,8 @@
  * redundancy.
  *
  * For regular replication, # of min live replicas for maintenance is determined
- * by {@link DFS_NAMENODE_MAINTENANCE_REPLICATION_MIN_KEY}. This number has to <=
- * {@link DFS_NAMENODE_REPLICATION_MIN_KEY}.
+ * by {@link DFSConfigKeys#DFS_NAMENODE_MAINTENANCE_REPLICATION_MIN_KEY}. This number has to <=
+ * {@link DFSConfigKeys#DFS_NAMENODE_REPLICATION_MIN_KEY}.
  * For erasure encoding, # of min live replicas for maintenance is
  * {@link BlockInfoStriped#getRealDataBlockNum}.
  *