diff --git a/autoload/lightline.vim b/autoload/lightline.vim
index 5889a31..2b2ad6d 100644
--- a/autoload/lightline.vim
+++ b/autoload/lightline.vim
@@ -3,7 +3,7 @@
 " Version: 0.0
 " Author: itchyny
 " License: MIT License
-" Last Change: 2013/08/28 10:07:44.
+" Last Change: 2013/08/30 01:07:12.
 " =============================================================================
 
 let s:save_cpo = &cpo
@@ -81,8 +81,8 @@ function! lightline#mode()
   return get(s:lightline.mode_map, mode(), s:lightline.mode_map['?'])
 endfunction
 
-function! lightline#link()
-  let mode = get(s:lightline._mode_, mode(), 'normal')
+function! lightline#link(...)
+  let mode = get(s:lightline._mode_, a:0 ? a:1 : mode(), 'normal')
   for i in range(len(s:lightline.active.left))
     exec printf('hi link LightLineLeft_active_%d LightLineLeft_%s_%d', i, mode, i)
     exec printf('hi link LightLineLeft_active_%d_%d LightLineLeft_%s_%d_%d', i, i + 1, mode, i, i + 1)
diff --git a/doc/lightline.txt b/doc/lightline.txt
index 48556bc..a1b2a48 100644
--- a/doc/lightline.txt
+++ b/doc/lightline.txt
@@ -4,7 +4,7 @@ Version: 0.0
 Author: itchyny (https://github.com/itchyny)
 License: MIT License
 Repository: https://github.com/itchyny/lightline.vim
-Last Change: 2013/08/29 14:44:34.
+Last Change: 2013/08/30 01:14:19.
 
 CONTENTS					*lightline-contents*
 
@@ -250,10 +250,10 @@ Exposed functions for lightline.vim.
 	lightline#update_once()			*lightline#update_once()*
 		Updates the statuslines only once.
 
-Following functions are exposed, but users may not need.
-
-	lightline#link()			*lightline#link()*
+	lightline#link(...)			*lightline#link()*
 		Creates links of the highlight groups for the active window.
+		This function accepts an optional argument. It should be one
+		of the return value of |mode()|.
 
 	lightline#highlight(inactive)		*lightline#highlight()*
 		Returns |statusline| strings. If the argument is 0, it returns