diff --git a/luci-app-sysupgrade/root/etc/init.d/sysupgrade b/luci-app-sysupgrade/root/etc/init.d/sysupgrade
index 9ffc3c537..44aac9fa8 100755
--- a/luci-app-sysupgrade/root/etc/init.d/sysupgrade
+++ b/luci-app-sysupgrade/root/etc/init.d/sysupgrade
@@ -1,5 +1,5 @@
 #!/bin/sh /etc/rc.common
-# Copyright (C) 2020-2021 Ycarus (Yannick Chabanois) <ycarus@zugaina.org>
+# Copyright (C) 2020-2024 Ycarus (Yannick Chabanois) <ycarus@zugaina.org>
 # Released under GPL 3. See LICENSE for the full terms.
 
 {
@@ -11,8 +11,8 @@
 start_service()
 {
 	if [ -f /etc/backup/installed_packages.txt ]; then
-		if [ "$(opkg -V0 update 2>&1)" = "" ]; then
-			grep "\toverlay" /etc/backup/installed_packages.txt | cut -f1 | xargs -r opkg -V0 install
+		opkg -V0 update >/dev/null 2>&1
+		if [ -z "$(grep '\toverlay' /etc/backup/installed_packages.txt | cut -f1 | xargs -r opkg -V0 install)" ]; then
 			rm /etc/backup/installed_packages.txt
 		fi
 	fi