diff --git a/marionette/marionette.d.ts b/marionette/marionette.d.ts
index 14d0a0b6c..314fcc432 100644
--- a/marionette/marionette.d.ts
+++ b/marionette/marionette.d.ts
@@ -1216,6 +1216,8 @@ declare module Marionette {
      */
     class Application extends Backbone.Events {
 
+        constructor(options?: any);
+
         /**
          * The Event Aggregator is available through this property. It is 
          * convenient for passively sharing information between pieces of your