Gitでpushしたらremote error: By default, updating the current branch in a non-bare repository is denied

git.exe push -v --progress  "origin" master:master

Pushing to ssh://xxx@aa.bb.cc.dd/var/lib/repository.git
Counting objects: 7, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 21.11 KiB | 0 bytes/s, done.
Total 4 (delta 1), reused 0 (delta 0)
remote: error: refusing to update checked out branch: refs/heads/master
remote: error: By default, updating the current branch in a non-bare repository
remote: error: is denied, because it will make the index and work tree inconsistent
remote: error: with what you pushed, and will require 'git reset --hard' to match
remote: error: the work tree to HEAD.
remote: error: 
remote: error: You can set 'receive.denyCurrentBranch' configuration variable to
remote: error: 'ignore' or 'warn' in the remote repository to allow pushing into
remote: error: its current branch; however, this is not recommended unless you
remote: error: arranged to update its work tree to match what you pushed in some
remote: error: other way.
remote: error: 
remote: error: To squelch this message and still keep the default behaviour, set
remote: error: 'receive.denyCurrentBranch' configuration variable to 'refuse'.
To ssh://xxx@aa.bb.cc.dd/var/lib/repository.git
! [remote rejected] master -> master (branch is currently checked out)
error: failed to push some refs to 'ssh://xxx@aa.bb.cc.dd/var/lib/repository.git'


git did not exit cleanly (exit code 1) (8486 ms @ 2015/01/14 20:02:56)