diff --git a/doc/authenticator.md b/doc/authenticator.md
index 2434767..1b9c154 100644
--- a/doc/authenticator.md
+++ b/doc/authenticator.md
@@ -2,7 +2,7 @@
 ========
 GitBucket provides many [authenticators](https://github.com/gitbucket/gitbucket/blob/master/src/main/scala/gitbucket/core/util/Authenticator.scala) to access controlling in the controller.
 
-For example, in the case of `RepositoryViwerController`,
+For example, in the case of `RepositoryViewerController`,
 it references three authenticators: `ReadableUsersAuthenticator`, `ReferrerAuthenticator` and `CollaboratorsAuthenticator`.
 
 ```scala
@@ -57,4 +57,4 @@
 |ReadableUsersAuthenticator|readableUsersOnly|Allows only signed in users which can access the repository.                          |
 |GroupManagerAuthenticator |managersOnly     |Allows only the group managers.                                                       |
 
-Of course, if you make a new plugin, you can define a your own authenticator according to requirement in your plugin.
\ No newline at end of file
+Of course, if you make a new plugin, you can define a your own authenticator according to requirement in your plugin.