diff --git a/known-issues.txt b/known-issues.txt
index 250112b2..a198eef8 100644
--- a/known-issues.txt
+++ b/known-issues.txt
@@ -1,3 +1,4 @@
 Known issues:
     - arduino-cli does not get stopped reliably upon app shutdown
     - startup time is not as fast we'd like to have it
+    - in Electron on OSX, the application menu is incomplete on app startup (see https://github.com/theia-ide/theia/issues/5100)
\ No newline at end of file