Fix invalid class name

Change-Id: Ia1ae48f9b5465465e4f23ec9edeb15976dd10fe9
diff --git a/linux/system/prompt/production.yml b/linux/system/prompt/production.yml
index 723503a..f878460 100644
--- a/linux/system/prompt/production.yml
+++ b/linux/system/prompt/production.yml
@@ -1,5 +1,5 @@
 classes:
-  - linux.system.prompt
+  - system.linux.system.prompt
 parameters:
   linux:
     system: