diff --git a/runtime/ftplugin/aap.vim b/runtime/ftplugin/aap.vim
new file mode 100644
index 0000000..90d404f
--- /dev/null
+++ b/runtime/ftplugin/aap.vim
@@ -0,0 +1,25 @@
+" Vim filetype plugin file
+" Language:	Aap recipe
+" Maintainer:	Bram Moolenaar <Bram@vim.org>
+" Last Change:	2003 Nov 04
+
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin")
+  finish
+endif
+
+" Don't load another plugin for this buffer
+let b:did_ftplugin = 1
+
+" Reset 'formatoptions', 'comments' and 'expandtab' to undo this plugin.
+let b:undo_ftplugin = "setl fo< com< et<"
+
+" Set 'formatoptions' to break comment lines but not other lines,
+" and insert the comment leader when hitting <CR> or using "o".
+setlocal fo-=t fo+=croql
+
+" Set 'comments' to format dashed lists in comments.
+setlocal comments=s:#\ -,m:#\ \,e:#,n:#,fb:-
+
+" Expand tabs to spaces to avoid trouble.
+setlocal expandtab