diff --git a/app/models/post.rb b/app/models/post.rb
index e2b55940a..d1b769c00 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -460,7 +460,7 @@ class Post < ActiveRecord::Base
     end
 
     def artist_tags_excluding_hidden
-      artist_tags - %(banned_artist)
+      artist_tags - %w(banned_artist)
     end
 
     def general_tags