diff --git a/cronjob/entrypoint.sh b/cronjob/entrypoint.sh
index 8f6f880..e7d3aa8 100644
--- a/cronjob/entrypoint.sh
+++ b/cronjob/entrypoint.sh
@@ -2,7 +2,7 @@
 
 env >> /etc/environment
 
-export CRON_EXPRESSION=${IMMICH_CARDDAV_CRON_EXPRESSION}
+export CRON_EXPRESSION=${CARDDAV_SYNC_CRON_EXPRESSION}
 envsubst < /app/crontab.tmpl >/etc/cron.d/immich-carddav-sync
 
 exec cron -f