diff --git a/lib/index.js b/lib/index.js
index a7a9d45..43e9935 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -50,6 +50,8 @@ const parseAccepted = (value) => {
   return parts.length === 1 ? [] : parts.slice(1);
 };
 
+export { TYPES, defaultTypes, parseAccepted };
+
 export default class Crumbs extends EventEmitter {
   constructor({
     banner,
@@ -125,7 +127,7 @@ export default class Crumbs extends EventEmitter {
     } else {
       // There is a know migration path
       // Run the migration function and return the result
-      return migration(this.cookie.value);
+      return migration.call(this.cookie.value);
     }
   }