diff --git a/ldap-conf.js b/ldap-conf.js
index b82dde1..0ad615b 100644
--- a/ldap-conf.js
+++ b/ldap-conf.js
@@ -7,7 +7,7 @@ async function main() {
     fs.writeFileSync("ldap-conf.json", JSON.stringify({
         bindUser: user,
         bindPassword: password
-    }))
+    }), { mode: 0o600 })
 }
 
 main()