diff --git a/syncplay/ui/GuiConfiguration.py b/syncplay/ui/GuiConfiguration.py
index 9691581..7c43076 100755
--- a/syncplay/ui/GuiConfiguration.py
+++ b/syncplay/ui/GuiConfiguration.py
@@ -15,8 +15,11 @@ from syncplay.vendor.Qt import QtCore, QtWidgets, QtGui, __binding__, IsPySide,
 from syncplay.vendor.Qt.QtCore import Qt, QSettings, QCoreApplication, QSize, QPoint, QUrl, QLine, QEventLoop, Signal
 from syncplay.vendor.Qt.QtWidgets import QApplication, QLineEdit, QLabel, QCheckBox, QButtonGroup, QRadioButton, QDoubleSpinBox, QPlainTextEdit
 from syncplay.vendor.Qt.QtGui import QCursor, QIcon, QImage, QDesktopServices
-if hasattr(QtCore.Qt, 'AA_EnableHighDpiScaling'):
-    QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling, True)
+try:
+    if hasattr(QtCore.Qt, 'AA_EnableHighDpiScaling'):
+        QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling, True)
+except AttributeError:
+    pass  # To ignore error "Attribute Qt::AA_EnableHighDpiScaling must be set before QCoreApplication is created"
 if hasattr(QtCore.Qt, 'AA_UseHighDpiPixmaps'):
     QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_UseHighDpiPixmaps, True)
 if IsPySide2:
diff --git a/syncplay/ui/gui.py b/syncplay/ui/gui.py
index fb96024..96ab007 100755
--- a/syncplay/ui/gui.py
+++ b/syncplay/ui/gui.py
@@ -26,8 +26,11 @@ if isLinux():
     applyDPIScaling = False
 else:
     applyDPIScaling = True
-if hasattr(QtCore.Qt, 'AA_EnableHighDpiScaling'):
-    QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling, applyDPIScaling)
+try:
+    if hasattr(QtCore.Qt, 'AA_EnableHighDpiScaling'):
+        QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling, applyDPIScaling)
+except AttributeError:
+    pass  # To ignore error "Attribute Qt::AA_EnableHighDpiScaling must be set before QCoreApplication is created"
 if hasattr(QtCore.Qt, 'AA_UseHighDpiPixmaps'):
     QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_UseHighDpiPixmaps, applyDPIScaling)
 if IsPySide2: