diff --git a/ftdetect/ruby.vim b/ftdetect/ruby.vim
index 81979c5b..a61eeea5 100644
--- a/ftdetect/ruby.vim
+++ b/ftdetect/ruby.vim
@@ -27,3 +27,6 @@ au BufNewFile,BufRead .autotest				set filetype=ruby
 
 " eRuby
 au BufNewFile,BufRead *.erb,*.rhtml			set filetype=eruby
+
+" Thor
+au BufNewFile,BufRead [tT]horfile,*.thor    set filetype=ruby