diff --git a/L_Ecobee1.lua b/L_Ecobee1.lua
index 1b74826..4f84ed3 100644
--- a/L_Ecobee1.lua
+++ b/L_Ecobee1.lua
@@ -43,7 +43,7 @@
     local veraTemperatureScale = "C"
 
     local function getVeraTemperatureScale()
-      veraTemperatureScale = luup.attr_get("TemperatureScale",0) or "C"
+      veraTemperatureScale = luup.attr_get("TemperatureFormat",0) or "C"
     end