diff --git a/cephfs/admin/doc.go b/cephfs/admin/doc.go
new file mode 100644
index 0000000..edd1f5d
--- /dev/null
+++ b/cephfs/admin/doc.go
@@ -0,0 +1,9 @@
+/*
+Package admin is a convenience layer to support the administration of
+CephFS volumes, subvolumes, etc.
+
+Unlike the cephfs package this API does not map to APIs provided by
+ceph libraries themselves. This API is not yet stable and is subject
+to change.
+*/
+package admin