diff --git a/types/lib/recurly.d.ts b/types/lib/recurly.d.ts
index 3dae675da..cd830276a 100644
--- a/types/lib/recurly.d.ts
+++ b/types/lib/recurly.d.ts
@@ -50,6 +50,11 @@ export interface Recurly extends Emitter<RecurlyEvent> {
    */
   configure: Configure;
 
+  /**
+   * Triggered once Recurly has fully been initialized after configuring.the instance.
+   */
+  ready: (cb?: VoidFunction) => void;
+
   /**
    * Elements allow sensitive customer payment information to be securely accepted via iframes.
    * They are controlled in groups by an Elements instance.