diff --git a/sssd/defaults.yaml b/sssd/defaults.yaml
index 4fcd65d..64dd9c3 100644
--- a/sssd/defaults.yaml
+++ b/sssd/defaults.yaml
@@ -4,7 +4,7 @@ sssd:
   package_status: installed
 
   # configuration file options
-  config_mode: 0600
+  config_mode: '0600'
   config_path: /etc/sssd/sssd.conf
 
   # service options