diff --git a/index.d.ts b/index.d.ts
index 27280d3..9203568 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -17,6 +17,7 @@ declare namespace Choo {
   export interface IChoo {
     history?: boolean
     href?: boolean
+    hash?: boolean
   }
 
   export interface IState {