Index: src/kdeinit/kinit.cpp
===================================================================
--- src/kdeinit/kinit.cpp
+++ src/kdeinit/kinit.cpp
@@ -1493,7 +1493,7 @@
 #ifdef __APPLE__
         display.replace('/', '_');
 #endif
-        QString xauth = QDir::tempPath() + QLatin1String("/xauth-")
+        QString xauth = QStandardPaths::writableLocation(QStandardPaths::RuntimeLocation) + QLatin1String("/xauth-")
                         + QString::number(getuid()) + QLatin1Char('-') + QString::fromLocal8Bit(display);
         QSaveFile xauthfile(xauth);
         QFile xauthfrom(QFile::decodeName(qgetenv("XAUTHORITY")));