unit test for sinlge-page resource (volumes)
diff --git a/openstack/blockstorage/v1/volumes/requests.go b/openstack/blockstorage/v1/volumes/requests.go
index e620ca6..af18e7e 100644
--- a/openstack/blockstorage/v1/volumes/requests.go
+++ b/openstack/blockstorage/v1/volumes/requests.go
@@ -152,7 +152,9 @@
 	createPage := func(r pagination.PageResult) pagination.Page {
 		return ListResult{pagination.SinglePageBase(r)}
 	}
-	return pagination.NewPager(client, url, createPage)
+	p := pagination.NewPager(client, url, createPage)
+	p.PageType = ListResult{}
+	return p
 }
 
 // UpdateOptsBuilder allows extensions to add additional parameters to the