diff --git a/srcpkgs/lightdm/template b/srcpkgs/lightdm/template
index 886b0b39dd9..d356202b727 100644
--- a/srcpkgs/lightdm/template
+++ b/srcpkgs/lightdm/template
@@ -1,7 +1,7 @@
 # Template file for 'lightdm'
 pkgname=lightdm
 version=1.12.1
-revision=2
+revision=3
 build_style=gnu-configure
 configure_args="--with-greeter-session=lightdm-gtk-greeter
  --with-greeter-user=lightdm --disable-static --disable-tests"
@@ -12,6 +12,9 @@ homepage="https://launchpad.net/lightdm"
 distfiles="https://launchpad.net/lightdm/${version%.*}/$version/+download/$pkgname-$version.tar.xz"
 checksum=55fc6ed30681d0d4c60ae3d2760c54ed74096632ca777f8cab5c072ef8f35b1b
 
+# both install /etc/dbus-1/system.d/org.freedesktop.DisplayManager.conf
+conflicts="sddm>=0"
+
 build_options="systemd"
 hostmakedepends="pkg-config intltool itstool gobject-introspection"
 makedepends="dbus-glib-devel libxklavier-devel libxml2-devel