diff --git a/src/js/yunohost/main.js b/src/js/yunohost/main.js
index fd566a82..be18e2f5 100644
--- a/src/js/yunohost/main.js
+++ b/src/js/yunohost/main.js
@@ -60,6 +60,21 @@
               + '</script>');
         });
 
+        // equality stuff because mustache/Handlebars is lame
+        // source https://stackoverflow.com/a/31632215
+        Handlebars.registerHelper('eq', function(a, b) {
+          return a === b;
+        });
+
+        Handlebars.registerHelper('in', function(a) {
+          // skip first one
+          for (var i = 1; i < arguments.length; ++i) {
+            if (arguments[i] == a)
+              return true;
+          }
+          return false;
+        });
+
         // Look for supported type of storage to use
         /**
          * http://sammyjs.org/docs/api/0.7.4/all#Sammy.Store.LocalStorage