diff --git a/modemmanager/files/etc/init.d/modemmanager b/modemmanager/files/etc/init.d/modemmanager
index 462fe2c40..44d2ebebc 100644
--- a/modemmanager/files/etc/init.d/modemmanager
+++ b/modemmanager/files/etc/init.d/modemmanager
@@ -32,5 +32,6 @@ start_service() {
 	procd_open_instance "monitor"
 	procd_set_param command /usr/sbin/ModemManager-monitor
 	procd_set_param respawn "${respawn_threshold:-3600}" "${respawn_timeout:-5}" "${respawn_retry:-5}"
+	procd_set_param nice "${nice:--10}"
 	procd_close_instance
 }