diff --git a/cluster/apt.apply.update.sh b/cluster/apt.apply.update.sh
index 9432d1e..42abaa0 100755
--- a/cluster/apt.apply.update.sh
+++ b/cluster/apt.apply.update.sh
@@ -256,7 +256,9 @@ main() {                                                        # {{{
 		&& exit 0
 
 	## Try to upgrade the system
-	upgrade_system
+	### Exit 50 if any error in returned value
+	upgrade_system \
+		|| exit 50
 
 	## If Maco upgrade is present
 	### Exit (and leave Maco manage required reboot if present)