diff --git a/group_vars/docker_host/vars.yml b/group_vars/docker_host/vars.yml
index 5be6933..0a27306 100644
--- a/group_vars/docker_host/vars.yml
+++ b/group_vars/docker_host/vars.yml
@@ -1,3 +1,3 @@
 ---
 docker_data_root: "/srv/docker"
-docker_cron_image_prune: true
+docker_image_prune: true