diff --git a/src/lang/japanese.txt b/src/lang/japanese.txt
--- a/src/lang/japanese.txt
+++ b/src/lang/japanese.txt
@@ -2061,9 +2061,6 @@ STR_NETWORK_START_SERVER_NUMBER_OF_CLIENTS_TOOLTIP              :{BLACK}接続できるクライアントの最大数を指定します。必ずしも全スロットを埋める必要はありません
 STR_NETWORK_START_SERVER_COMPANIES_SELECT                       :{BLACK}会社数: {NUM}
 STR_NETWORK_START_SERVER_NUMBER_OF_COMPANIES                    :{BLACK}最大会社数:
 STR_NETWORK_START_SERVER_NUMBER_OF_COMPANIES_TOOLTIP            :{BLACK}このサーバーでの最大会社数を指定します
-STR_NETWORK_START_SERVER_SPECTATORS_SELECT                      :{BLACK}観覧者数: {NUM}
-STR_NETWORK_START_SERVER_NUMBER_OF_SPECTATORS                   :{BLACK}最高観覧者数:
-STR_NETWORK_START_SERVER_NUMBER_OF_SPECTATORS_TOOLTIP           :{BLACK}このサーバーでの最大観覧者数を指定します
 STR_NETWORK_START_SERVER_LANGUAGE_SPOKEN                        :{BLACK}言語:
 STR_NETWORK_START_SERVER_LANGUAGE_TOOLTIP                       :{BLACK}このサーバーで使われる主言語を表示します