diff --git a/src/Umbraco.Web.UI.Client/src/packages/block/block-list/property-editors/block-list-editor/property-editor-ui-block-list.element.ts b/src/Umbraco.Web.UI.Client/src/packages/block/block-list/property-editors/block-list-editor/property-editor-ui-block-list.element.ts
index 70619b68e4..7f4beab100 100644
--- a/src/Umbraco.Web.UI.Client/src/packages/block/block-list/property-editors/block-list-editor/property-editor-ui-block-list.element.ts
+++ b/src/Umbraco.Web.UI.Client/src/packages/block/block-list/property-editors/block-list-editor/property-editor-ui-block-list.element.ts
@@ -38,7 +38,7 @@ export class UmbPropertyEditorUIBlockListElement extends UmbLitElement implement
 		return this._value;
 	}
 	public set value(value: UmbBlockListValueModel | undefined) {
-		const buildUpValue: Partial<UmbBlockListValueModel> = { ...value } ?? {};
+		const buildUpValue: Partial<UmbBlockListValueModel> = value ? { ...value } : {};
 		buildUpValue.layout ??= {};
 		buildUpValue.contentData ??= [];
 		buildUpValue.settingsData ??= [];