diff --git a/app/models/ticket/article.rb b/app/models/ticket/article.rb
index cac6521b3..e9dc0dbdc 100644
--- a/app/models/ticket/article.rb
+++ b/app/models/ticket/article.rb
@@ -270,8 +270,8 @@ returns
       }
       attributes['attachments'].push item
     }
-    if articles['body'] && articles['content_type'] =~ %r{text/html}i
-      articles['body'] = HtmlSanitizer.dynamic_image_size(articles['body'])
+    if attributes['body'] && attributes['content_type'] =~ %r{text/html}i
+      attributes['body'] = HtmlSanitizer.dynamic_image_size(attributes['body'])
     end
     Ticket::Article.insert_urls(attributes)
   end