--- udev-init-scripts-28/init.d/udev-trigger
+++ udev-init-scripts-28/init.d/udev-trigger
@@ -38,7 +38,7 @@
 
 start_post()
 {
-	if yesno "${udev_monitor}:-no}"; then
+	if yesno "${udev_monitor:-no}"; then
 		if yesno "${udev_monitor_keep_running:-no}"; then
 			ewarn "udevmonitor is still writing into ${udevmonitor_log}"
 		else
@@ -46,7 +46,7 @@
 			start-stop-daemon --stop --pidfile "${udevmonitor_pid}" \
 				--exec /bin/udevadm
 		fi
-		fi
+	fi
 		display_hotplugged_services
 }