diff --git a/web/public/javascripts/leon.js b/web/public/javascripts/leon.js
index 70e566259d17caeea30544fcac735b10b08f6fba..765aa2ade4b9ecf1fd8fe43f1fdaa35f0904114d 100644
--- a/web/public/javascripts/leon.js
+++ b/web/public/javascripts/leon.js
@@ -30,6 +30,7 @@ function loadExample() {
 $(document).ready(function() {
     editor = ace.edit("codebox");
     editor.getSession().setMode("ace/mode/scala");
+    editor.getSession().setUseWrapMode(true);
 
     $("#leoninput").submit(function () {