diff --git a/markdown.vim b/markdown.vim
index 16bd406..9cc66e4 100644
--- a/markdown.vim
+++ b/markdown.vim
@@ -3,5 +3,5 @@ set grepprg=grep\ -nH\ $*
 let g:pencil#textwidth=80
 let g:pencil#conceallevel=0
 autocmd BufRead *.md set spell
-autocmd FileType md call pencil#init({'wrap': 'hard', 'autoformat': 1})
+autocmd FileType markdown call pencil#init({'wrap': 'hard', 'autoformat': 1})