diff --git a/custom_components/peaqhvac/service/hvac/house_heater/temperature_helper.py b/custom_components/peaqhvac/service/hvac/house_heater/temperature_helper.py
index ddd3d32..a44cfe1 100644
--- a/custom_components/peaqhvac/service/hvac/house_heater/temperature_helper.py
+++ b/custom_components/peaqhvac/service/hvac/house_heater/temperature_helper.py
@@ -51,7 +51,7 @@ def get_temp_trend_offset(
         ret = max(round(new_temp_diff, 1), 0)
     else:
         ret = min(round(new_temp_diff, 1), 0)
-    return min((round(ret / 2, 1)), 1) * -1
+    return min((round(ret / 2, 1)), 1) * (-1 if ret > 0 else 1)
 
 
 def _temp_extremas_return(diffs, tolerance) -> float: