diff --git a/ftdetect/elixir.vim b/ftdetect/elixir.vim
index 264ab8cc..f9c65e10 100644
--- a/ftdetect/elixir.vim
+++ b/ftdetect/elixir.vim
@@ -1,9 +1,9 @@
-au BufRead,BufNewFile *.ex,*.exs set filetype=elixir
-au BufRead,BufNewFile *.eex set filetype=eelixir
+au BufRead,BufNewFile *.ex,*.exs setfiletype elixir
+au BufRead,BufNewFile *.eex setfiletype eelixir
 au BufRead,BufNewFile * call s:DetectElixir()
 
 function! s:DetectElixir()
   if &filetype !=# 'elixir' && getline(1) =~# '^#!.*\<elixir\>'
-    set filetype=elixir
+    setlocal filetype=elixir
   endif
 endfunction