diff --git a/src/webui/index.js b/src/webui/index.js
index 9db506c60..a1f074e62 100644
--- a/src/webui/index.js
+++ b/src/webui/index.js
@@ -46,6 +46,8 @@ const createWindow = () => {
   })
 
   window.webContents.on('unresponsive', async () => {
+    logger.error('[web ui] the webui became unresponsive')
+
     const opt = showDialog({
       title: i18n.t('unresponsiveWindowDialog.title'),
       message: i18n.t('unresponsiveWindowDialog.message'),