diff --git a/roles/s3-mirror/tasks/main.yml b/roles/s3-mirror/tasks/main.yml
index a41b0d6bae..74f40d5541 100644
--- a/roles/s3-mirror/tasks/main.yml
+++ b/roles/s3-mirror/tasks/main.yml
@@ -49,7 +49,7 @@
   cron: name="s3sync" minute="0" hour="0,11" user="s3-mirror"
         job='/usr/local/bin/lock-wrapper s3sync /usr/local/bin/s3.sh 2>&1 | /usr/local/bin/nag-once s3.sh 1d 2>&1'
         cron_file=s3.sh
-  when: env != 'staging'
+  when: env != 'staging' and inventory_hostname.startswith('mm-backend01.')
   tags:
   - s3-mirror