diff --git a/app/Models/Content.php b/app/Models/Content.php
index 176aa9d3..9c60d8c9 100644
--- a/app/Models/Content.php
+++ b/app/Models/Content.php
@@ -177,7 +177,7 @@ class Content extends Model
         // join user email and user name to results when needed
         if ($joinAuthor) {
             $query = $query->join('users', 'users.id', '=', 'contents.user_id')
-                           ->addSelect('COALESCE(users.name, users.email) AS author_name')
+                           ->addSelect(DB::raw('COALESCE(users.name, users.email) AS author_name'))
                            ->addSelect('users.email AS author_email');
         }