UpdateMetadata for snapshots
diff --git a/openstack/blockstorage/v1/snapshots/urls.go b/openstack/blockstorage/v1/snapshots/urls.go
index fb324bb..4d635e8 100644
--- a/openstack/blockstorage/v1/snapshots/urls.go
+++ b/openstack/blockstorage/v1/snapshots/urls.go
@@ -22,6 +22,6 @@
 	return c.ServiceURL("snapshots", id, "metadata")
 }
 
-func updateURL(c *gophercloud.ServiceClient, id string) string {
+func updateMetadataURL(c *gophercloud.ServiceClient, id string) string {
 	return metadataURL(c, id)
 }