diff --git a/vimrc b/vimrc
index 32e4490..20de109 100644
--- a/vimrc
+++ b/vimrc
@@ -110,6 +110,7 @@ if has("autocmd")
     autocmd BufRead,BufNewFile *.html set shiftwidth=2
     autocmd BufRead,BufNewFile *.md set filetype=markdown
     autocmd BufRead,BufNewFile *.md set tabstop=4
+    autocmd BufRead,BufNewFile *.opml set shiftwidth=2
     autocmd BufRead,BufNewFile *.xml set shiftwidth=2
     autocmd BufRead,BufNewFile *.yml set shiftwidth=2
 endif