diff --git a/bundles/apt/files/upgrade-and-reboot b/bundles/apt/files/upgrade-and-reboot
index 118cc11..008df40 100644
--- a/bundles/apt/files/upgrade-and-reboot
+++ b/bundles/apt/files/upgrade-and-reboot
@@ -74,7 +74,7 @@ then
     date | mail -s "SYSREBOOTNOW ${node.name}" ${data['mail']}
 % endif
     systemctl reboot
-% if restart_triggers
+% if restart_triggers:
 else
 % for affected, restarts in sorted(restart_triggers.items()):
     up_since=$(systemctl show "${affected}" | sed -n 's/^ActiveEnterTimestamp=//p' || echo 0)