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 7b5ccbcd918..831cda88860 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
@@ -475,8 +475,8 @@
   <description>
     The NameNode periodically scans the namespace for LazyPersist files with
     missing blocks and unlinks them from the namespace. This configuration key
-    controls the interval between successive scans. Set it to a negative value
-    to disable this behavior.
+    controls the interval between successive scans. If this value is set to 0,
+    the file scrubber is disabled.
   </description>
 </property>
 <property>