diff --git a/vimrc b/vimrc
index 4f13e15..63d7d1b 100644
--- a/vimrc
+++ b/vimrc
@@ -74,6 +74,7 @@ autocmd FileType ruby    set softtabstop=2 shiftwidth=2
 autocmd FileType eruby   set softtabstop=2 shiftwidth=2
 autocmd FileType coffee  set softtabstop=4 shiftwidth=4
 au      BufRead,BufNewFile Guardfile setfiletype ruby
+au      BufRead,BufNewFile *.skim setfiletype slim
 let g:syntastic_ruby_checkers = ['mri', 'rubocop']
 
 "notify line over length