diff --git a/pottwal.yml b/pottwal.yml
index 80f5c9a..fb83aff 100644
--- a/pottwal.yml
+++ b/pottwal.yml
@@ -9,6 +9,8 @@
 
   roles:
   - role: docker
+    vars:
+      docker_data_root: "/srv/docker"
   - role: apache
 
   tasks: