diff --git a/packages/js/product-editor/src/store/product-editor-ui/reducer.ts b/packages/js/product-editor/src/store/product-editor-ui/reducer.ts
index ff8051d09b7..c4f2d7cdc19 100644
--- a/packages/js/product-editor/src/store/product-editor-ui/reducer.ts
+++ b/packages/js/product-editor/src/store/product-editor-ui/reducer.ts
@@ -49,7 +49,7 @@ export default function reducer(
 				...state,
 				modalEditor: {
 					...state.modalEditor,
-					blocks: action.blocks,
+					blocks: action.blocks || [],
 				},
 			};
 	}