diff --git a/entrypoint.cron.sh b/entrypoint.cron.sh
index c255b60..c4d422e 100644
--- a/entrypoint.cron.sh
+++ b/entrypoint.cron.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-echo '15,45 * * * * docker exec $(docker ps -qf 'name=${STACK_NAME}_app') pretix runperiodic' | crontab - && crond -f -d 8
\ No newline at end of file
+echo '15,45 * * * * docker exec $(docker ps -qf 'name=^${STACK_NAME}_app') pretix runperiodic' | crontab - && crond -f -d 8
\ No newline at end of file