diff --git a/metadata/service/slave/single.yml b/metadata/service/slave/single.yml
index cc9690c..6b4862a 100644
--- a/metadata/service/slave/single.yml
+++ b/metadata/service/slave/single.yml
@@ -13,4 +13,4 @@
         protocol: http
       user:
         name: admin
-        password: ${_secret:jenkins_admin_password}
+        password: ${_param:jenkins_admin_password}