diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
index dad267c..d3675c8 100644
--- a/pytec/tec_qt.py
+++ b/pytec/tec_qt.py
@@ -3,6 +3,7 @@ from PyQt6.QtCore import pyqtSignal, QObject, QSignalBlocker, pyqtSlot
 import pyqtgraph.parametertree.parameterTypes as pTypes
 from pyqtgraph.parametertree import Parameter, ParameterTree, ParameterItem, registerParameterType
 import pyqtgraph as pg
+pg.setConfigOptions(antialias=True)
 from pglive.sources.data_connector import DataConnector
 from pglive.kwargs import Axis
 from pglive.sources.live_plot import LiveLinePlot