diff --git a/README.md b/README.md
index b716e93..ecfc19a 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ After the installation, you can use this button to install the integration:
 - AC200L (untested)
 - AC200M
 - AC300 (tested)
-- AC500
+- AC500 (tested)
 - EB3A
 - EP500
 - EP500P