diff --git a/README.md b/README.md
index e97cd3d..117cb50 100644
--- a/README.md
+++ b/README.md
@@ -527,7 +527,7 @@ function! MyModified()
 endfunction
 
 function! MyReadonly()
-  return &ft !~? 'help\|vimfiler\|gundo' && &ro ? '⭤' : ''
+  return &ft !~? 'help\|vimfiler\|gundo' && &readonly ? '⭤' : ''
 endfunction
 
 function! MyFilename()
diff --git a/autoload/lightline.vim b/autoload/lightline.vim
index 82db2b9..642869c 100644
--- a/autoload/lightline.vim
+++ b/autoload/lightline.vim
@@ -3,7 +3,7 @@
 " Version: 0.0
 " Author: itchyny
 " License: MIT License
-" Last Change: 2013/08/27 16:22:36.
+" Last Change: 2013/08/27 18:29:04.
 " =============================================================================
 
 let s:save_cpo = &cpo
@@ -94,16 +94,21 @@ function! lightline#mode()
 endfunction
 
 function! lightline#link()
-  let mode = get(g:lightline._mode_, mode(), 'normal')
-  for i in range(len(g: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)
-  endfor
-  exec printf('hi link LightLineMiddle_active LightLineMiddle_%s', mode)
-  for i in range(len(g:lightline.active.right))
-    exec printf('hi link LightLineRight_active_%d LightLineRight_%s_%d', i, mode, i)
-    exec printf('hi link LightLineRight_active_%d_%d LightLineRight_%s_%d_%d', i, i + 1, mode, i, i + 1)
-  endfor
+  try
+    let mode = get(g:lightline._mode_, mode(), 'normal')
+    for i in range(len(g: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)
+    endfor
+    exec printf('hi link LightLineMiddle_active LightLineMiddle_%s', mode)
+    for i in range(len(g:lightline.active.right))
+      exec printf('hi link LightLineRight_active_%d LightLineRight_%s_%d', i, mode, i)
+      exec printf('hi link LightLineRight_active_%d_%d LightLineRight_%s_%d_%d', i, i + 1, mode, i, i + 1)
+    endfor
+  catch
+    let s:_ = 1
+    call lightline#update()
+  endtry
   return ''
 endfunction
 
diff --git a/doc/lightline.txt b/doc/lightline.txt
index 39b42f4..775945c 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: 2013/08/27 16:19:02.
+Last Change: 2013/08/27 17:16:34.
 
 CONTENTS					*lightline-contents*
 
@@ -113,7 +113,7 @@ OPTIONS						*lightline-option*
 			\ },
 			\ }
 		function! MyReadonly()
-			return &ft !~? 'help' && &ro ? 'RO' : ''
+			return &ft !~? 'help' && &readonly ? 'RO' : ''
 		endfunction
 <
 	g:lightline.colorscheme			*g:lightline.colorscheme*
@@ -275,7 +275,7 @@ In order to define your own component:
 		      \ ('' != MyModified() ? ' ' . MyModified() : '')
 	endfunction
 	function! MyReadonly()
-		return &ft !~? 'help' && &ro ? 'RO' : ''
+		return &ft !~? 'help' && &readonly ? 'RO' : ''
 	endfunction
 	function! MyModified()
 		return &modifiable && &modified ? '+' : ''
@@ -325,7 +325,7 @@ A nice example for non-patched font users.
 		return &ft =~ 'help\|vimfiler' ? '' : &modified ? '+' : &modifiable ? '' : '-'
 	endfunction
 	function! MyReadonly()
-		return &ft !~? 'help\|vimfiler' && &ro ? 'RO' : ''
+		return &ft !~? 'help\|vimfiler' && &readonly ? 'RO' : ''
 	endfunction
 	function! MyFilename()
 		return ('' != MyReadonly() ? MyReadonly() . ' ' : '') .
@@ -357,7 +357,7 @@ A nice example for |vim-powerline| font users:
 		return &ft =~ 'help\|vimfiler' ? '' : &modified ? '+' : &modifiable ? '' : '-'
 	endfunction
 	function! MyReadonly()
-		return &ft !~? 'help\|vimfiler' && &ro ? '⭤' : ''
+		return &ft !~? 'help\|vimfiler' && &readonly ? '⭤' : ''
 	endfunction
 	function! MyFilename()
 		return ('' != MyReadonly() ? MyReadonly() . ' ' : '') .