@@ -161,7 +161,11 @@ func isNotEmpty(err error) bool {

 }

 // Delete atomically removes an image from the graph.

-func (graph *Graph) Delete(id string) error {

+func (graph *Graph) Delete(name string) error {

+	id, err := graph.idIndex.Get(name)

+	if err != nil {

+		return err

+	}

 	garbage, err := graph.Garbage()

 	if err != nil {

 		return err