diff --git a/roles/build/tasks/main.yml b/roles/build/tasks/main.yml
index f85493ee20ba0bccda6fc1686df522c64966490a..d7701b7166966a5f3238a083cfb40753cfb2968e 100644
--- a/roles/build/tasks/main.yml
+++ b/roles/build/tasks/main.yml
@@ -2,7 +2,8 @@
 
 - assert:
     that:
-    - "'CHANGE_ME' not in dslproxy"
+      - "'CHANGE_ME' not in dslproxy"
+    fail_msg: "Review *all* settings in group_vars/all/main.yml"
 
 - include: system.yml
 - include: centos.yml