diff --git a/data/defaults.yaml b/data/defaults.yaml
index e45a7318b..9f1d1d0fc 100644
--- a/data/defaults.yaml
+++ b/data/defaults.yaml
@@ -109,7 +109,6 @@ prometheus::global_config:
   'external_labels':
     'monitor': 'master'
 prometheus::group: 'prometheus'
-prometheus::install_method: 'url'
 prometheus::localstorage: '/var/lib/prometheus'
 prometheus::manage_config: true
 prometheus::mesos_exporter::server_type: 'master'