diff --git a/sapl/static/js/app.js b/sapl/static/js/app.js
index 697564024..7b18b6aad 100644
--- a/sapl/static/js/app.js
+++ b/sapl/static/js/app.js
@@ -8,8 +8,6 @@ function initTinymce(elements, readonly=false) {
         menubar: "edit format table tools",
         toolbar: "undo redo | styleselect | bold italic | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent",
         tools: "inserttable",
-        border_css: "/static/styles/style_tinymce.css",
-        content_css: "/static/styles/style_tinymce.css",
     }
 
     if (readonly) {