diff --git a/brewpi.py b/brewpi.py
index 9f6b7a6..036c7c0 100644
--- a/brewpi.py
+++ b/brewpi.py
@@ -11,7 +11,6 @@ from ws.message import MsgIo, MessageDispatcher
 from utils.value import ChangedFloat, ChangedInteger
 
 DT_CTRL = 0.1
-DT_PARAMS = 1.0
 
 
 class ATask:
@@ -255,7 +254,8 @@ if __name__ == '__main__':
 	pot_params = config['Plant']
 	if "sim" in config['Controller']['plant_name']:
 		pot = Pot(pot_params, 20)
-		pot.set_on_changed("temp", ChangedFloat(sensor.set_fake_temp, prec=3).set)
+		if "sim" in config['Controller']['sensor_name']:
+			pot.set_on_changed("temp", ChangedFloat(sensor.set_fake_temp, prec=3).set)
 		taskmgr.add(PotTask(pot, DT_CTRL, dispatcher.msgio_get("Pot")))
 
 	# Heater