diff --git a/backbone/backbone.d.ts b/backbone/backbone.d.ts
index 701cc6d9d..f7c5945ad 100644
--- a/backbone/backbone.d.ts
+++ b/backbone/backbone.d.ts
@@ -19,6 +19,7 @@ declare module Backbone {
 
     interface NavigateOptions {
         trigger?: boolean;
+        replace?: boolean;
     }
 
     interface RouterOptions {