diff --git a/lib/lurker/templates/javascripts/lurker.js b/lib/lurker/templates/javascripts/lurker.js
index aabf9b9..58059f7 100644
--- a/lib/lurker/templates/javascripts/lurker.js
+++ b/lib/lurker/templates/javascripts/lurker.js
@@ -46,7 +46,7 @@
     buildActionUrl: function(host, template, values) {
       for (var i = 0; i < values.length; i++) {
         var placeholder = new RegExp(':' + values[i].label);
-        template = template.replace(placeholder, values[i].value);
+        template = template.replace(placeholder, encodeURIComponent(values[i].value));
       }
       return host + template;
     },