diff --git a/README.md b/README.md
index 14893e4..f635074 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,7 @@ Units tested by project contributors include:
 - `MSZ-AP20VGK` (https://github.com/echavet/MitsubishiCN105ESPHome/discussions/83)
 - `MSZ-AP42VGK`
 - `MSZ-AY35VGKP`
+- `MSZ-FSXXNA`
 
 ## Usage