diff --git a/config.rb b/config.rb
index 45acdce..911bb23 100644
--- a/config.rb
+++ b/config.rb
@@ -105,4 +105,12 @@ helpers do
         ))
     end
   end
+
+  def default_theme
+    theme = data.themes.first
+    OpenStruct.new(theme.merge(
+      slug: theme['name'].parameterize.underscore,
+      digest: Digest::MD5.new.hexdigest(theme['colors'])
+    ))
+  end
 end
diff --git a/source/javascripts/all.js.erb b/source/javascripts/all.js.erb
index 8da8e17..b9eb36e 100644
--- a/source/javascripts/all.js.erb
+++ b/source/javascripts/all.js.erb
@@ -9,10 +9,10 @@ app.config(['$stateProvider', '$urlRouterProvider',
                 url: "/:slug",
                 controller: 'ThemeController',
                 params: {
-                    slug: { value: '<%= themes.first.slug %>' }
+                    slug: { value: '<%= default_theme.slug %>' }
                 }
             });
-        $urlRouterProvider.otherwise('/<%= themes.first.slug %>');
+        $urlRouterProvider.otherwise('/<%= default_theme.slug %>');
     }]);
 
 app.controller('ThemeController', ['$scope', '$stateParams', '$state', '$location',