diff --git a/auto-update-ubuntu b/auto-update-ubuntu
index 79c5515..61efcdb 100755
--- a/auto-update-ubuntu
+++ b/auto-update-ubuntu
@@ -70,8 +70,14 @@ sed -i '/Unattended-Upgrade::Allowed-Origins/ s|//\s*"\${distro_id}:\${distro_co
 #
 # Create cron job running every Sunday at 04:00
 #
-cronfile="/etc/cron.d/updatesystem"
-cronjob='0 4 * * 0 root /usr/bin/apt update && /usr/bin/unattended-upgrade -v >/dev/null 2>&1'
+cronjob01='0 4 * * 0 root /usr/bin/apt update && /usr/bin/unattended-upgrade -v >/dev/null 2>&1'
+echo "$cronjob01" > /etc/cron.d/updatesystem
+
+#
+# Ensure correct permissions for /etc/cron.d entries
+#
+chmod 644 /etc/cron.d/updatesystem
+chown root:root /etc/cron.d/updatesystem
 
 #
 # Restart unattended upgrades and cron.