diff --git a/units/systemd-boot-update.service b/units/systemd-boot-update.service
index f234184d78..9a4fbc1e71 100644
--- a/units/systemd-boot-update.service
+++ b/units/systemd-boot-update.service
@@ -21,7 +21,7 @@ Before=shutdown.target
 [Service]
 Type=oneshot
 RemainAfterExit=yes
-ExecStart=bootctl --no-variables --graceful update
+ExecStart=bootctl --variables=no --graceful update
 
 [Install]
 WantedBy=sysinit.target