diff --git a/packages/app-desktop/services/plugins/UserWebviewIndex.js b/packages/app-desktop/services/plugins/UserWebviewIndex.js
index 18c57ff9ff..b2d22f8492 100644
--- a/packages/app-desktop/services/plugins/UserWebviewIndex.js
+++ b/packages/app-desktop/services/plugins/UserWebviewIndex.js
@@ -51,6 +51,7 @@ const webviewApi = {
 
 	docReady(() => {
 		const rootElement = document.createElement('div');
+		rootElement.setAttribute('id', 'joplin-plugin-content-root');
 		document.getElementsByTagName('body')[0].appendChild(rootElement);
 
 		const contentElement = document.createElement('div');