diff --git a/cluster/apt.apply.update.sh b/cluster/apt.apply.update.sh
index 2baf78d..9432d1e 100755
--- a/cluster/apt.apply.update.sh
+++ b/cluster/apt.apply.update.sh
@@ -16,9 +16,13 @@ readonly NBARGS="${#}"
 ## Export DEBUG for sub-script
 export DEBUG
 
-# Temp file to monitor
+# APT temp file to monitor
 readonly APT_TMP_FILE="/tmp/.apt.upgrade"
 
+# Maco temp file
+readonly MACO_TMP_FILE="/tmp/.maco.upgrade"
+readonly MACO_TMP_URGENT_FILE="/tmp/.maco.urgent.upgrade"
+
 ## Colors
 readonly PURPLE='\033[1;35m'
 readonly RED='\033[0;31m'
@@ -98,6 +102,30 @@ NO APT upgrade available for this system."
 
 	return "${return_apt_upgrade_present}"
 
+}
+# }}}
+is_maco_upgrade_present() {                                     # {{{
+
+	return_maco_upgrade_present="1"
+
+	## Check if temp Maco upgrade file is present
+	if [ -f "${MACO_TMP_FILE}" ]; then
+		return_maco_upgrade_present="0"
+		debug_message "is_maco_upgrade_present − \
+Maco upgrade seems available."
+
+	## Check if temp Maco urgent upgrade file is present
+	elif [ -f "${MACO_TMP_URGENT_FILE}" ]; then
+		return_maco_upgrade_present="0"
+		debug_message "is_maco_upgrade_present − \
+Maco urgent upgrade seems available."
+	else
+		debug_message "is_maco_upgrade_present − \
+No Maco upgrade require."
+	fi
+
+	return "${return_maco_upgrade_present}"
+
 }
 # }}}
 is_queue_enable() {                                             # {{{
@@ -230,6 +258,11 @@ main() {                                                        # {{{
 	## Try to upgrade the system
 	upgrade_system
 
+	## If Maco upgrade is present
+	### Exit (and leave Maco manage required reboot if present)
+	is_maco_upgrade_present \
+		&& exit 0
+
 }
 # }}}