diff --git a/image.go b/image.go
index 04f90455c..449e42dc2 100644
--- a/image.go
+++ b/image.go
@@ -169,6 +169,7 @@ func (i *Image) Dispose() error {
 	}
 	restorable.Images().Remove(i.restorable)
 	i.restorable = nil
+	runtime.SetFinalizer(i, nil)
 	return nil
 }