diff --git a/packages/block-library/src/freeform/modal.js b/packages/block-library/src/freeform/modal.js
index 67338be91fa86..c243f09da4bcc 100644
--- a/packages/block-library/src/freeform/modal.js
+++ b/packages/block-library/src/freeform/modal.js
@@ -88,7 +88,7 @@ export default function ModalEdit( props ) {
 								{ __( 'Cancel' ) }
 							</Button>
 							<Button
-								isPrimary
+								variant="primary"
 								onClick={ () => {
 									setAttributes( {
 										content: