diff --git a/webtrees/README.md b/webtrees/README.md
index 94fbe58b5..52d0308d4 100644
--- a/webtrees/README.md
+++ b/webtrees/README.md
@@ -1,3 +1,4 @@
+## ⚠ Open Issue : [🐛 [Webtrees] Configuration "BASE_URL" cannot be modified (opened 2023-01-06)](https://github.com/alexbelgium/hassio-addons/issues/633) by [@thorschtn](https://github.com/thorschtn)
 # Home assistant add-on: Webtrees
 
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