diff --git a/layers/+config-files/ansible/config.el b/layers/+config-files/ansible/config.el
index c703ae425..824b4f84c 100644
--- a/layers/+config-files/ansible/config.el
+++ b/layers/+config-files/ansible/config.el
@@ -10,6 +10,8 @@
 ;;
 ;;; License: GPLv3
 
+(configuration-layer/declare-layers '(yaml))
+
 ;; detect filenames compatible with Ansible's recommended layout.
 ;; http://docs.ansible.com/playbooks_best_practices.html#directory-layout
 (setq ansible/ansible-filename-re