diff --git a/tools/fake.yaml b/tools/fake.yaml
index 464dda152..f9cfd9156 100644
--- a/tools/fake.yaml
+++ b/tools/fake.yaml
@@ -2,6 +2,7 @@ script-dir: .
 dburi: 'mysql://nodepool@localhost/nodepool'
 
 cron:
+  check: '*/15 * * * *'
   cleanup: '*/1 * * * *'
   update-image: '14 2 * * *'