diff --git a/ruby/dialog/serverdialog.rb b/ruby/dialog/serverdialog.rb
index 835fb9a6..a72dcae4 100644
--- a/ruby/dialog/serverdialog.rb
+++ b/ruby/dialog/serverdialog.rb
@@ -31,10 +31,6 @@ def config
   
   JA_SERVERS = [
     'irc.ircnet.ne.jp (IRCnet)',
-    'irc.nara.wide.ad.jp (IRCnet)',
-    'irc.fujisawa.wide.ad.jp (IRCnet)',
-    'irc.huie.hokudai.ac.jp (IRCnet)',
-    'irc.media.kyoto-u.ac.jp (IRCnet)',
     '-',
     'irc.friend-chat.jp (Friend)',
     'irc.2ch.net (2ch)',
diff --git a/ruby/irc/unit.rb b/ruby/irc/unit.rb
index e347aa99..187a13da 100644
--- a/ruby/irc/unit.rb
+++ b/ruby/irc/unit.rb
@@ -59,9 +59,15 @@ def setup(seed)
   
   def migrate
     # migrate irc.friend.td.nu to irc.friend-chat.jp
-    if @config.host =~ /irc.friend.td.nu/
+    if @config.host =~ /^irc.friend.td.nu/
       @config.host = 'irc.friend-chat.jp'
     end
+    
+    # migrate wide servers
+    case @config.host
+    when /^irc.kyoto.wide.ad.jp/,/^irc.nara.wide.ad.jp/,/^irc.tokyo.wide.ad.jp/,/^irc.fujisawa.wide.ad.jp/,/^irc.huie.hokudai.ac.jp/,/^irc.media.kyoto-u.ac.jp/
+      @config.host = 'irc.ircnet.ne.jp'
+    end
   end
   
   def update_config(seed)