diff --git a/autoload/dpp/util.vim b/autoload/dpp/util.vim
index 52488e9..5ab0009 100644
--- a/autoload/dpp/util.vim
+++ b/autoload/dpp/util.vim
@@ -166,7 +166,7 @@ endfunction
 function dpp#util#_generate_ftplugin(runtimepath, ftplugin) abort
   let generated = {}
 
-  " Merge g:dein#ftplugin
+  " Merge
   let ftplugin = {}
   for [key, string] in a:ftplugin->items()
     for ft in (key ==# '_' ? ['_'] : key->split('_'))
diff --git a/doc/dpp.txt b/doc/dpp.txt
index 7b08f4e..9fcbcc0 100644
--- a/doc/dpp.txt
+++ b/doc/dpp.txt
@@ -260,6 +260,9 @@ lazy		(Bool)
 		NOTE: You should not specify the plugins which have no
 		"plugin/" directory as lazy load plugins.  It is meaningless
 		and just increases the overhead.
+		NOTE: To load lazy plugins, you need to install
+		|dpp-ext-lazy|.
+		https://github.com/Shougo/dpp-ext-lazy
 
                                                     *dpp-plugin-option-merged*
 merged		(Bool)