diff --git a/src/Umbraco.Web.UI.Client/src/backoffice/shared/property-editors/uis/multi-url-picker/property-editor-ui-multi-url-picker.element.ts b/src/Umbraco.Web.UI.Client/src/backoffice/shared/property-editors/uis/multi-url-picker/property-editor-ui-multi-url-picker.element.ts
index fa0e27135f..2fe4e5b311 100644
--- a/src/Umbraco.Web.UI.Client/src/backoffice/shared/property-editors/uis/multi-url-picker/property-editor-ui-multi-url-picker.element.ts
+++ b/src/Umbraco.Web.UI.Client/src/backoffice/shared/property-editors/uis/multi-url-picker/property-editor-ui-multi-url-picker.element.ts
@@ -16,7 +16,7 @@ import { DataTypePropertyModel } from '@umbraco-cms/backend-api';
 export class UmbPropertyEditorUIMultiUrlPickerElement extends UmbLitElement {
 	static styles = [UUITextStyles];
 
-	@property()
+	@property({ type: Array })
 	value: MultiUrlData[] = [];
 
 	@property({ type: Array, attribute: false })