diff --git a/electrum/gui/qt/__init__.py b/electrum/gui/qt/__init__.py
index fbf0a61e5..2ff8ce669 100644
--- a/electrum/gui/qt/__init__.py
+++ b/electrum/gui/qt/__init__.py
@@ -119,7 +119,6 @@ class ElectrumGui(BaseElectrumGui, Logger):
         # GC-ed when windows are closed
         #network.add_jobs([DebugMem([Abstract_Wallet, SPV, Synchronizer,
         #                            ElectrumWindow], interval=5)])
-        QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_X11InitThreads)
         if hasattr(QtCore.Qt, "AA_ShareOpenGLContexts"):
             QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_ShareOpenGLContexts)
         if hasattr(QGuiApplication, 'setDesktopFileName'):