private docker registry no longer works with version 1.8.1 #835

It works with version 1.8.0, but with 1.8.1 i got the following exception:
Caused by: com.github.dockerjava.api.exception.DockerClientException: Could not pull image: unauthorized: authentication required

OS is Linux.
Docker version 17.05.0-ce, build 89658be
~/.docker/config.json (with replaced url and token):
{
"auths": {
"registry.url": {
"auth": "token"
}
}
}