diff --git a/pix2tex/gui.py b/pix2tex/gui.py
index 7686d98..f9094ca 100644
--- a/pix2tex/gui.py
+++ b/pix2tex/gui.py
@@ -3,11 +3,11 @@
 import os
 import tempfile
 from PyQt5 import QtCore, QtGui
-from PyQt5.QtCore import QObject, Qt, pyqtSlot, pyqtSignal, QThread
+from PyQt5.QtCore import Qt, pyqtSlot, pyqtSignal, QThread
 from PyQt5.QtWebEngineWidgets import QWebEngineView
 from PyQt5.QtGui import QKeySequence
 from PyQt5.QtWidgets import QMainWindow, QApplication, QMessageBox, QVBoxLayout, QWidget, QShortcut,\
-    QPushButton, QTextEdit, QLineEdit, QFormLayout, QHBoxLayout, QCheckBox, QSpinBox, QDoubleSpinBox
+    QPushButton, QTextEdit, QFormLayout, QHBoxLayout, QDoubleSpinBox
 from pix2tex.resources import resources
 from pynput.mouse import Controller
 
@@ -108,7 +108,7 @@ def toggleProcessing(self, value=None):
         self.snipButton.setText(text)
         self.snipButton.clicked.disconnect()
         self.snipButton.clicked.connect(func)
-        self.displayPrediction()
+        self.displayPrediction() 
 
     @pyqtSlot()
     def onClick(self):
@@ -306,6 +306,8 @@ def mouseReleaseEvent(self, event):
 
 def main(arguments):
     with in_model_path():
+        if os.name != 'nt':
+            os.environ['QTWEBENGINE_DISABLE_SANDBOX'] = '1'
         app = QApplication(sys.argv)
         ex = App(arguments)
-        sys.exit(app.exec_())
+        sys.exit(app.exec())