Update blockstorage v2 API
diff --git a/openstack/blockstorage/v2/volumes/urls.go b/openstack/blockstorage/v2/volumes/urls.go
index 29629a1..2523ec6 100644
--- a/openstack/blockstorage/v2/volumes/urls.go
+++ b/openstack/blockstorage/v2/volumes/urls.go
@@ -7,7 +7,7 @@
 }
 
 func listURL(c *gophercloud.ServiceClient) string {
-	return createURL(c)
+	return c.ServiceURL("volumes", "detail")
 }
 
 func deleteURL(c *gophercloud.ServiceClient, id string) string {