diff --git a/puff/data.yml b/puff/data.yml
index 7a9221fd5..3e16f2ffe 100644
--- a/puff/data.yml
+++ b/puff/data.yml
@@ -1,5 +1,5 @@
 additionalProperties:
-  key: Puff
+  key: puff
   name: Puff
   tags:
     - WebSite