--- config/xdm-config.in.orig	2019-03-02 22:06:13 UTC
+++ config/xdm-config.in
@@ -25,6 +25,7 @@ DisplayManager*authComplain:	true
 DisplayManager._0.setup:	XDMSCRIPTDIR/Xsetup_0
 DisplayManager._0.startup:	XDMSCRIPTDIR/GiveConsole
 DisplayManager._0.reset:	XDMSCRIPTDIR/TakeConsole
+DisplayManager.*.authName:	MIT-MAGIC-COOKIE-1
 #ifdef XPM
 DisplayManager*loginmoveInterval:	10
 #endif /* XPM */
