diff --git a/xdm.changes b/xdm.changes
index c91293a..083c106 100644
--- a/xdm.changes
+++ b/xdm.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Feb 13 15:47:45 UTC 2019 - sndirsch@suse.com
+
+- %post: get rid of DISPLAYMANAGER in /etc/sysconfig/displaymanager
+  (boo#1125040)
+
 -------------------------------------------------------------------
 Tue Dec 11 08:06:00 UTC 2018 - msrb@suse.com
 
diff --git a/xdm.spec b/xdm.spec
index 678b23c..f0630da 100644
--- a/xdm.spec
+++ b/xdm.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package xdm
 #
-# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -224,6 +224,8 @@ touch %{buildroot}%{_libexecdir}/X11/displaymanagers/console
   default-displaymanager %{_libexecdir}/X11/displaymanagers/console 5
 %{_sbindir}/update-alternatives --install %{_libexecdir}/X11/displaymanagers/default-displaymanager \
   default-displaymanager %{_libexecdir}/X11/displaymanagers/xdm 10
+# get rid of DISPLAYMANAGER in /etc/sysconfig/displaymanager (boo#1125040)
+sed -i 's/DISPLAYMANAGER=.*//g' /etc/sysconfig/displaymanager
 %endif
 %if 0%{?suse_version} > 1320
 %firewalld_reload