diff --git a/drivers/aufs/aufs.go b/drivers/aufs/aufs.go
index 8d001a89ee..ef90f5f16c 100644
--- a/drivers/aufs/aufs.go
+++ b/drivers/aufs/aufs.go
@@ -679,10 +679,11 @@ func (a *Driver) Cleanup() error {
 }
 
 func (a *Driver) aufsMount(ro []string, rw, target string, options graphdriver.MountOpts) (err error) {
-	defer func() {
+	defer func() error {
 		if err != nil {
-			Unmount(target)
+			err = Unmount(target)
 		}
+		return err
 	}()
 
 	// Mount options are clipped to page size(4096 bytes). If there are more