diff --git a/blk/blk.go b/blk/blk.go
index 30dae52..a695224 100644
--- a/blk/blk.go
+++ b/blk/blk.go
@@ -231,7 +231,7 @@ func (m *Mounter) unmount() error {
 	if len(dev.Children) > 0 {
 		dev = dev.Children[0]
 	}
-	mp := *m.dev.MountPoint
+	mp := *dev.MountPoint
 
 	if err := util.SystemdUnmount(mp); err == nil {
 		return nil