diff --git a/guides/source/action_cable_overview.md b/guides/source/action_cable_overview.md
index 5a59e5a48d..622cb0b4ea 100644
--- a/guides/source/action_cable_overview.md
+++ b/guides/source/action_cable_overview.md
@@ -120,7 +120,7 @@ by this same current user, you're also ensuring that you can later retrieve all
 connections by a given user (and potentially disconnect them all if the user is deleted
 or unauthorized).
 
-If you use Device for authenticaion, you can get `current_user` from warden:
+If you use Devise for authenticaion, you can get `current_user` from warden:
 
 ```ruby
   verified_user = env['warden'].user