diff --git a/source/_docs/z-wave/controllers.markdown b/source/_docs/z-wave/controllers.markdown
index ad1fee37690..f5113061b80 100644
--- a/source/_docs/z-wave/controllers.markdown
+++ b/source/_docs/z-wave/controllers.markdown
@@ -9,7 +9,7 @@ You need to have a compatible Z-Wave stick or module installed. This needs to be
-There have [been reports](https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=245031#p1502030) of the Aeotec stick not working on the Raspberry Pi 4.
+There are [known compatability issues](https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=245031#p1502030) with older hardware versions of the Aeotec stick not working on the Raspberry Pi 4. Aeotec has released a 2020 hardware revision ZW090-A with Pi 4 compatibility. Both hardware revisions are still being sold, make informed purchasing decisions if using paired with a Pi 4.