diff --git a/vimrc b/vimrc
index 8d2f950..5ac5352 100644
--- a/vimrc
+++ b/vimrc
@@ -164,7 +164,7 @@ map ,t4   :echo TabSize(4)<CR>
 map ,t8   :echo TabSize(8)<CR>
 
 " Explicitly set certain filetypes.
-augroup filetypedetect
+augroup filetype
   au!
   au BufRead,BufNewFile *.S	set filetype=c
   au bufRead,BufNewFile *.cc set filetype=cpp