diff --git a/joplin/README.md b/joplin/README.md
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--- a/joplin/README.md
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@@ -1,3 +1,4 @@
+## ⚠ Open Issue : [🐛 [Joplin] Access-Control-Allow-Origin calls for Joplin URL instead of APP_BASE_URL (opened 2022-12-28)](https://github.com/alexbelgium/hassio-addons/issues/617) by [@kayserlein](https://github.com/kayserlein)
 # Home assistant add-on: Joplin
 
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