diff --git a/runtime/optwin.vim b/runtime/optwin.vim
index 23c0379..7aa1e0f 100644
--- a/runtime/optwin.vim
+++ b/runtime/optwin.vim
@@ -1,7 +1,7 @@
 " These commands create the option window.
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2005 Aug 29
+" Last Change:	2005 Sep 01
 
 " If there already is an option window, jump to that one.
 if bufwinnr("option-window") > 0
@@ -704,6 +704,9 @@
   call append("$", "completefunc\tuser defined function for Insert mode completion")
   call append("$", "\t(local to buffer)")
   call <SID>OptionL("cfu")
+  call append("$", "occultfunc\tfunction for filetype-specific Insert mode completion")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("ofu")
   call append("$", "dictionary\tlist of dictionary files for keyword completion")
   call append("$", "\t(global or local to buffer)")
   call <SID>OptionG("dict", &dict)