diff --git a/pytec/pytec/gui/model/pid_autotuner.py b/pytec/pytec/gui/model/pid_autotuner.py
index 676d88f..cfa2b96 100644
--- a/pytec/pytec/gui/model/pid_autotuner.py
+++ b/pytec/pytec/gui/model/pid_autotuner.py
@@ -4,10 +4,9 @@ from autotune import PIDAutotuneState, PIDAutotune
 
 
 class PIDAutoTuner(QObject):
-    def __init__(self, parent, client, thermostat, num_of_channel):
+    def __init__(self, parent, thermostat, num_of_channel):
         super().__init__()
 
-        self._client = client
         self._thermostat = thermostat
         self.autotuners = [PIDAutotune(25) for _ in range(num_of_channel)]
         self.target_temp = [20.0 for _ in range(num_of_channel)]
diff --git a/pytec/pytec/gui/model/thermostat.py b/pytec/pytec/gui/model/thermostat.py
index d6e6a8d..4666dd2 100644
--- a/pytec/pytec/gui/model/thermostat.py
+++ b/pytec/pytec/gui/model/thermostat.py
@@ -3,6 +3,7 @@ from qasync import asyncSlot
 from pytec.gui.model.property import Property, PropertyMeta
 import asyncio
 import logging
+from pytec.aioclient import Client
 
 
 class Thermostat(QObject, metaclass=PropertyMeta):
@@ -17,9 +18,9 @@ class Thermostat(QObject, metaclass=PropertyMeta):
     info_box_trigger = pyqtSignal(str, str)
     connection_error = pyqtSignal()
 
-    def __init__(self, parent, client, update_s):
+    def __init__(self, parent, update_s):
         self._update_s = update_s
-        self._client = client
+        self._client = Client()
         self._watch_task = None
         self._report_mode_task = None
         self._poll_for_report = True
diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
index 4c59f39..17d8df1 100644
--- a/pytec/tec_qt.py
+++ b/pytec/tec_qt.py
@@ -8,7 +8,6 @@ from pytec.gui.view.ctrl_panel import CtrlPanel
 from pytec.gui.view.info_box import InfoBox
 from pytec.gui.model.pid_autotuner import PIDAutoTuner
 from pytec.gui.model.thermostat import Thermostat
-from pytec.aioclient import Client
 import json
 from autotune import PIDAutotuneState
 from qasync import asyncSlot, asyncClose
@@ -69,10 +68,8 @@ class MainWindow(QtWidgets.QMainWindow):
         self.hw_rev_data = None
         self.info_box = InfoBox()
 
-        self.client = Client()
-
         self.thermostat = Thermostat(
-            self, self.client, self.report_refresh_spin.value()
+            self, self.report_refresh_spin.value()
         )
 
         def handle_connection_error():
@@ -85,7 +82,7 @@ class MainWindow(QtWidgets.QMainWindow):
 
         self.thermostat.connection_error.connect(handle_connection_error)
 
-        self.autotuners = PIDAutoTuner(self, self.client, self.thermostat, 2)
+        self.autotuners = PIDAutoTuner(self, self.thermostat, 2)
 
         def get_ctrl_panel_config(args):
             with open(args.param_tree, "r") as f: