diff --git a/src/plugins/platforms/xlib/qxlibintegration.cpp b/src/plugins/platforms/xlib/qxlibintegration.cpp
index b5c59e9554..5be7420426 100644
--- a/src/plugins/platforms/xlib/qxlibintegration.cpp
+++ b/src/plugins/platforms/xlib/qxlibintegration.cpp
@@ -66,6 +66,8 @@ QXlibIntegration::QXlibIntegration()
     mEventDispatcher = createUnixEventDispatcher();
     QGuiApplicationPrivate::instance()->setEventDispatcher(mEventDispatcher);
 
+    XInitThreads();
+
     mPrimaryScreen = new QXlibScreen();
     mScreens.append(mPrimaryScreen);
     screenAdded(mPrimaryScreen);