diff --git a/selfdrive/thermald.py b/selfdrive/thermald.py
index 2fcd9685c..cfd366dc9 100755
--- a/selfdrive/thermald.py
+++ b/selfdrive/thermald.py
@@ -130,7 +130,7 @@ def handle_fan_eon(max_cpu_temp, bat_temp, fan_speed, ignition):
 
 
 def handle_fan_uno(max_cpu_temp, bat_temp, fan_speed, ignition):
-  new_speed = int(interp(max_cpu_temp, [40.0, 80.0], [0, 100]))
+  new_speed = int(interp(max_cpu_temp, [40.0, 80.0], [0, 80]))
 
   if not ignition:
     new_speed = min(30, new_speed)