diff --git a/app/controllers/messages_controller.rb b/app/controllers/messages_controller.rb
index 33f4e5bfb..bad54b88e 100644
--- a/app/controllers/messages_controller.rb
+++ b/app/controllers/messages_controller.rb
@@ -48,7 +48,7 @@ class MessagesController < ApplicationController
 
     @user_course_identity = current_user.course_identity(@message.board.course)
     case @user_course_identity
-    when 5 || 6 || 7
+    when 5, 6, 7
       @messages = @messages.visible
     end