没有发现使用鱼壳w/rbenv的Bundler

在尝试使用Bundler与在fish shell中使用rbenv管理的ruby 1.9.3p194时,我收到错误:

> gem install bundler
Fetching: bundler-1.5.1.gem (100%)

> bundle install
fish: Unknown command 'bundle'

Rbenv正config.fish如此初始化:

set -x PATH "$HOME/.rbenv/bin" $PATH
. (rbenv init - | psub)

并输出rbenv init -:

> rbenv init -
setenv RBENV_SHELL fish
. '/Users/nifl/.rbenv/libexec/../completions/rbenv.fish'
rbenv rehash 2>/dev/null
function rbenv
  set command $argv[1]
  set -e argv[1]

  switch "$command"
  case rehash shell
    eval (rbenv "sh-$command" $argv)
  case '*'
    command rbenv "$command" $argv
  end
end

我没有将fish设置为默认shell,而Bundler在Bash中运行正常.