diff --git a/homeassistant/components/thermostat/nest.py b/homeassistant/components/thermostat/nest.py
index af3b02b2b159395ac179353d6e1d1ddab0a037be..b9d13b123fbdd2da76a4d623c2842e0e221be83d 100644
--- a/homeassistant/components/thermostat/nest.py
+++ b/homeassistant/components/thermostat/nest.py
@@ -80,11 +80,11 @@ class NestThermostat(ThermostatDevice):
             low, high = target
 
             if self.current_temperature < low:
-                target = low
+                temp = low
             elif self.current_temperature > high:
-                target = high
+                temp = high
             else:
-                target = low + high
+                temp = (low + high)/2
         else:
             temp = target