diff --git a/tasmota/xdrv_04_light.ino b/tasmota/xdrv_04_light.ino
index a8eaf9629..a47787f90 100644
--- a/tasmota/xdrv_04_light.ino
+++ b/tasmota/xdrv_04_light.ino
@@ -650,7 +650,7 @@ class LightStateClass {
           _ww = changeUIntScale(w, 0, max, 0, 255);
           _wc = changeUIntScale(c, 0, max, 0, 255);
         }
-        _ct = changeUIntScale(w, 0, sum, _ct_min_range, _ct_max_range);
+        _ct = changeUIntScale(w, 0, sum, CT_MIN, CT_MAX);
         addCTMode();   // activate CT mode if needed
         if (_color_mode & LCM_CT) { _briCT = free_range ? max : (sum > 255 ? 255 : sum); }
       }