diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
index be345afdc04..96c04f0ba4e 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
@@ -3375,7 +3375,10 @@
dfs.block.invalidate.limit
1000
- Limit on the list of invalidated block list kept by the Namenode.
+ The maximum number of invalidate blocks sent by namenode to a datanode
+ per heartbeat deletion command. This property works with
+ "dfs.namenode.invalidate.work.pct.per.iteration" to throttle block
+ deletions.