diff --git a/acc-wizard/acc-wizard.d.ts b/acc-wizard/acc-wizard.d.ts
index 19d5498847..5eb81a11c7 100644
--- a/acc-wizard/acc-wizard.d.ts
+++ b/acc-wizard/acc-wizard.d.ts
@@ -97,5 +97,5 @@ interface AccWizardOptions {
  * @version 1.0
  */
 interface JQuery {
-    accwizard(options: AccWizardOptions): void;
+    accwizard(options?: AccWizardOptions): void;
 }
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