gitlab:shell:setup rake command fails with v1.9.4

...../var/lib/gitlab/gitlab-shell/lib/gitlab_keys.rb:87:in `block in lock': uninitialized constant GitlabKeys::Timeout (NameError)
	from /var/lib/gitlab/gitlab-shell/lib/gitlab_keys.rb:84:in `open'
	from /var/lib/gitlab/gitlab-shell/lib/gitlab_keys.rb:84:in `lock'
	from /var/lib/gitlab/gitlab-shell/lib/gitlab_keys.rb:39:in `batch_add_keys'
	from /var/lib/gitlab/gitlab-shell/lib/gitlab_keys.rb:19:in `exec'
	from /var/lib/gitlab/gitlab-shell//bin/gitlab-keys:21:in `<main>'