diff --git a/roles/ldap_netdb/tasks/main.yml b/roles/ldap_netdb/tasks/main.yml
index 9426b87..1921261 100644
--- a/roles/ldap_netdb/tasks/main.yml
+++ b/roles/ldap_netdb/tasks/main.yml
@@ -19,5 +19,5 @@
 - name: install netdb-update cron job
   cron:
     name: update-netdb-data
-    minute: 10
+    minute: "10"
     job: /usr/local/sbin/netdb-update