diff --git a/README.md b/README.md
index db9e135..7addead 100644
--- a/README.md
+++ b/README.md
@@ -59,15 +59,5 @@ Note that this plugin contributes to
 
 ## Usage
 
-Add the following lines to your `vimrc`
-
-```vim
-" Octave syntax
-augroup filetypedetect
-  autocmd!
-  autocmd BufRead,BufNewFile *.m,*.oct setlocal filetype=octave
-augroup END
-```
-
-Omni completion should works out-of-box by setting
-`omnifunc=syntaxcomplete#Complete`.
+The plugin should work out of the box.  You can enable omni completion
+by setting `omnifunc=syntaxcomplete#Complete`.
diff --git a/ftdetect/octave.vim b/ftdetect/octave.vim
new file mode 100644
index 0000000..eaf40f0
--- /dev/null
+++ b/ftdetect/octave.vim
@@ -0,0 +1 @@
+au! BufRead,BufNewFile *.m,*.oct setlocal filetype=octave