diff --git a/blocks/api/factory.js b/blocks/api/factory.js
index 000468224adbb..0244967f7bfe5 100644
--- a/blocks/api/factory.js
+++ b/blocks/api/factory.js
@@ -31,6 +31,7 @@ export function createBlock( name, attributes = {} ) {
 	return {
 		uid: uuid(),
 		name,
+		isValid: true,
 		attributes: {
 			...defaultAttributes,
 			...attributes,
diff --git a/blocks/api/test/factory.js b/blocks/api/test/factory.js
index 390e3b08f7914..064174fa68751 100644
--- a/blocks/api/test/factory.js
+++ b/blocks/api/test/factory.js
@@ -36,6 +36,7 @@ describe( 'block factory', () => {
 				includesDefault: true,
 				align: 'left',
 			} );
+			expect( block.isValid ).toBe( true );
 			expect( typeof block.uid ).toBe( 'string' );
 		} );
 	} );