diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/Constants.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/Constants.java
index 806e69f32c6b7..b0bd617524555 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/Constants.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/Constants.java
@@ -46,7 +46,7 @@ public interface Constants {
    * Config key to specify the name of the default mount table.
    */
   String CONFIG_VIEWFS_DEFAULT_MOUNT_TABLE_NAME_KEY =
-      "fs.viewfs.mounttable.default.name.key";
+      "fs.viewfs.mounttable.default-name-key";
 
   /**
    * Config variable name for the default mount table.
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ViewFsOverloadScheme.md b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ViewFsOverloadScheme.md
index 3b61f3ce75e1c..7bf53c5a17225 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ViewFsOverloadScheme.md
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ViewFsOverloadScheme.md
@@ -179,10 +179,10 @@ For example, when the following configuration is used but a path like `viewfs:/f
 ```
 
 ### Solution
-To avoid the above problem, the configuration `fs.viewfs.mounttable.default.name.key` has to be set to the name of the cluster, i.e, the following should be added to `core-site.xml`
+To avoid the above problem, the configuration `fs.viewfs.mounttable.default-name-key` has to be set to the name of the cluster, i.e, the following should be added to `core-site.xml`
 ```xml
 <property>
-  <name>fs.viewfs.mounttable.default.name.key</name>
+  <name>fs.viewfs.mounttable.default-name-key</name>
   <value>cluster</value>
 </property>
 ```