diff --git a/source/_components/switch.tellstick.markdown b/source/_components/switch.tellstick.markdown
index e9f3baf21e4..055d445f07b 100644
--- a/source/_components/switch.tellstick.markdown
+++ b/source/_components/switch.tellstick.markdown
@@ -9,6 +9,7 @@ sharing: true
 footer: true
 logo: telldus_tellstick.png
 ha_category: Switch
+ha_iot_class: "Assumed State"
 ---