diff --git a/debian/postinst b/debian/postinst
index 14ab54f..4b5f6b0 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -4,7 +4,7 @@ set -e
 
 case "$1" in
 configure)
-	if [ -e /usr/sbin/update-grub2 ] ; then
+	if [ -e /usr/sbin/grub-mkconfig ] ; then
 		GRUBDEFAULT="/etc/default/grub"
 		if [ -e "$GRUBDEFAULT" ] ; then
 			if (grep '^GRUB_BACKGROUND' "$GRUBDEFAULT" > /dev/null 2>&1) ; then
@@ -13,8 +13,7 @@ configure)
 				echo 'GRUB_BACKGROUND="/usr/share/blorand/blorand.png"' >> "$GRUBDEFAULT"
 			fi
 		fi
-
-		/usr/sbin/update-grub2
+		/usr/sbin/grub-mkconfig -o /boot/grub/grub.cfg
 	fi
 
 	cat /usr/share/blorand/vimrc.blorand | while read line ; do