diff --git a/roles/diagnostic/vars/main.yml b/roles/diagnostic/vars/main.yml
index 7953a15..2105dd3 100644
--- a/roles/diagnostic/vars/main.yml
+++ b/roles/diagnostic/vars/main.yml
@@ -1,2 +1,4 @@
+---
+
 btop_source_base_path: /usr/src
 btop_source_path: '{{ btop_source_base_path }}/btop'