diff --git a/packages/core/src/components/Modal/Modal.tsx b/packages/core/src/components/Modal/Modal.tsx
index fbfdf52b3e..4b81f23585 100644
--- a/packages/core/src/components/Modal/Modal.tsx
+++ b/packages/core/src/components/Modal/Modal.tsx
@@ -18,7 +18,7 @@ export interface ModalProps {
    * Id of the modal, used internally and for accessibility
    */
   id?: string;
-  "data-testid": string;
+  "data-testid"?: string;
   /**
    * Show/hide the Dialog
    */