diff --git a/roles/backup_base/defaults/main.yml b/roles/backup_base/defaults/main.yml
new file mode 100644
index 0000000..2a14dc3
--- /dev/null
+++ b/roles/backup_base/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+backup_datadir: >-
+  {% if ansible_local['export'] %}/export{% else %}/srv{% endif %}/backup