Troubles with Rails

CentOS 4.5 i386
ruby 1.8.5

Ставил через gem (gem install rails --include-dependencies)

При попытке сделать rails dummyapp выдается следующее:
[root@remotehost tmp]# rails dummyapp
/usr/lib/ruby/gems/1.8/gems/activerecord-2.0.1/lib/active_record.rb:34: undefined method `gem' for main:Object (NoMethodError)
	from /usr/lib/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__'
	from /usr/lib/site_ruby/1.8/rubygems/custom_require.rb:21:in `require'
	from /usr/lib/site_ruby/1.8/rubygems.rb:182:in `activate'
	from /usr/lib/site_ruby/1.8/rubygems.rb:181:in `each'
	from /usr/lib/site_ruby/1.8/rubygems.rb:181:in `activate'
	from /usr/lib/site_ruby/1.8/rubygems.rb:167:in `activate'
	from /usr/lib/site_ruby/1.8/rubygems.rb:166:in `each'
	from /usr/lib/site_ruby/1.8/rubygems.rb:166:in `activate'
	from /usr/lib/site_ruby/1.8/rubygems.rb:37:in `require_gem_with_options'
	from /usr/lib/site_ruby/1.8/rubygems.rb:31:in `require_gem'
	from /usr/bin/rails:17
[root@remotehost tmp]# 

Как победить?