diff --git a/templates/base.html b/templates/base.html
index 9cbfd9bf0..8ea902d6f 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -66,9 +66,27 @@
 
     {% if munchkin_key %}
       <script type="text/javascript">
-      document.write(unescape("%3Cscript src='//munchkin.marketo.net/munchkin.js' type='text/javascript'%3E%3C/script%3E"));
+      (function() {
+        var didInit = false;
+        function initMunchkin() {
+          if(didInit === false) {
+            didInit = true;
+            Munchkin.init('{{ munchkin_key }}');
+          }
+        }
+        var s = document.createElement('script');
+        s.type = 'text/javascript';
+        s.async = true;
+        s.src = '//munchkin.marketo.net/munchkin-beta.js';
+        s.onreadystatechange = function() {
+          if (this.readyState == 'complete' || this.readyState == 'loaded') {
+            initMunchkin();
+          }
+        };
+        s.onload = initMunchkin;
+        document.getElementsByTagName('head')[0].appendChild(s);
+      })();
       </script>
-      <script>Munchkin.init('{{ munchkin_key }}');</script>
     {% endif %}
 
     {% if google_analytics_key %}