diff --git a/tasks/tracer.py b/tasks/tracer.py
index 937492d..4904f6b 100644
--- a/tasks/tracer.py
+++ b/tasks/tracer.py
@@ -8,11 +8,14 @@ from components import APid
 
 import numpy as np
 import scipy.io
+import os
 
 
 class TracerTask(ATask):
-	def __init__(self, sensor: ATemperatureSensor, heater: AHeater, temp_ctrl: APid, interval, msg_handler: MsgIo):
+	def __init__(self, sensor: ATemperatureSensor, heater: AHeater, temp_ctrl: APid, interval, msg_handler: MsgIo, path = './logs'):
 		ATask.__init__(self, interval)
+		if not os.path.exists(path):
+			os.makedirs(path)
 
 		self.msg_handler = msg_handler
 		msg_handler.set_recv_handler(self.recv)
@@ -20,6 +23,7 @@ class TracerTask(ATask):
 		self.sensor = sensor
 		self.heater = heater
 		self.temp_ctrl = temp_ctrl
+		self.path = path
 
 	async def recv(self, data):
 		pass
@@ -40,7 +44,7 @@ class TracerTask(ATask):
 		_tc_dtemp_soll = np.empty(0)
 		_tc_dtemp_commanded = np.empty(0)
 
-		filename = "brewpi." + time.strftime("%Y%m%d%H%M%S", time.localtime()) + ".mat"
+		filename = os.path.join(self.directory, '') + "brewpi." + time.strftime("%Y%m%d%H%M%S", time.localtime()) + ".mat"
 		while True:
 			_timestamp = np.append(_timestamp, timestamp)
 			_sensor_temp = np.append(_sensor_temp, self.sensor.temperature())