@@ -49,6 +49,7 @@ options=sectionbody
   <link rel=stylesheet href="js/node_modules/codemirror/lib/codemirror.css">
   <script src="js/node_modules/codemirror/lib/codemirror.js"></script>
   <script src="js/node_modules/codemirror/mode/javascript/javascript.js"></script>
+  <script src="js/node_modules/codemirror/addon/edit/matchbrackets.js"></script>
   <script src="js/node_modules/acorn/acorn.js"></script>
   <script src="js/node_modules/acorn/util/walk.js"></script>
   <link rel=stylesheet href="ejs.css">
 
@@ -50,7 +50,8 @@ window.addEventListener("load", function() {
     var editor = CodeMirror(wrap, {
       value: code,
       mode: "javascript",
-      extraKeys: keyMap
+      extraKeys: keyMap,
+      matchBrackets: true
     });
     wrap.style.margin = "0 -5em";
     setTimeout(function() { editor.refresh(); }, 600);