diff --git a/components/actor/stirrerpololu1376.py b/components/actor/stirrerpololu1376.py
index 1661cd6..ba8ceaa 100644
--- a/components/actor/stirrerpololu1376.py
+++ b/components/actor/stirrerpololu1376.py
@@ -25,6 +25,8 @@ class StirrerPololu1376(AStirrer):
 		self.ser_send('V')
 		self.ser_recv()
 
+		self.activate(False)
+
 	@contextmanager
 	def remote_open(self):
 		try:
@@ -55,7 +57,7 @@ class StirrerPololu1376(AStirrer):
 		print("on_activate {}".format(enable))
 
 	def on_set_speed(self, speed):
-		self.ser_send("F" + str(speed) + "%")
+		self.ser_send("F" + str(int(speed)) + "%")
 		print("Set speed to {} %".format(speed))