diff --git a/data/prodinf01n04.main.unkin.net.yaml b/data/prodinf01n04.main.unkin.net.yaml
index 3a11505..4047e86 100644
--- a/data/prodinf01n04.main.unkin.net.yaml
+++ b/data/prodinf01n04.main.unkin.net.yaml
@@ -1,4 +1,4 @@
 ---
 classes:
-  roles::puppet::puppetdb
+  - roles::puppet::puppetdb
 environment: testing