diff --git a/syng/gui.py b/syng/gui.py
index 16bee5c..00610c7 100644
--- a/syng/gui.py
+++ b/syng/gui.py
@@ -26,6 +26,7 @@ try:
 except ImportError:
     pass
 
+os.environ["QT_API"] =  "pyqt6"
 from qasync import QEventLoop, QApplication
 from PyQt6.QtCore import QObject, QTimer, Qt, pyqtSignal, pyqtSlot
 from PyQt6.QtGui import QCloseEvent, QIcon, QPixmap