diff --git a/lib/doc/ja/Additional.lyx b/lib/doc/ja/Additional.lyx
index 843cbcc98a..44ce34f532 100644
--- a/lib/doc/ja/Additional.lyx
+++ b/lib/doc/ja/Additional.lyx
@@ -71,7 +71,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"
diff --git a/lib/doc/ja/Customization.lyx b/lib/doc/ja/Customization.lyx
index ad92ba53b7..6f748b8dcb 100644
--- a/lib/doc/ja/Customization.lyx
+++ b/lib/doc/ja/Customization.lyx
@@ -76,7 +76,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"
diff --git a/lib/doc/ja/EmbeddedObjects.lyx b/lib/doc/ja/EmbeddedObjects.lyx
index 8841a66753..b92331fb9d 100644
--- a/lib/doc/ja/EmbeddedObjects.lyx
+++ b/lib/doc/ja/EmbeddedObjects.lyx
@@ -191,7 +191,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"
diff --git a/lib/doc/ja/Intro.lyx b/lib/doc/ja/Intro.lyx
index 6326c19b3c..58f45d3897 100644
--- a/lib/doc/ja/Intro.lyx
+++ b/lib/doc/ja/Intro.lyx
@@ -40,7 +40,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"
diff --git a/lib/doc/ja/Math.lyx b/lib/doc/ja/Math.lyx
index c40815a339..0c3936e545 100644
--- a/lib/doc/ja/Math.lyx
+++ b/lib/doc/ja/Math.lyx
@@ -161,7 +161,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"
diff --git a/lib/doc/ja/Shortcuts.lyx b/lib/doc/ja/Shortcuts.lyx
index f589fcf7d2..2c06275a72 100644
--- a/lib/doc/ja/Shortcuts.lyx
+++ b/lib/doc/ja/Shortcuts.lyx
@@ -12,7 +12,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"
diff --git a/lib/doc/ja/Tutorial.lyx b/lib/doc/ja/Tutorial.lyx
index 0eb67c9c0b..4306955843 100644
--- a/lib/doc/ja/Tutorial.lyx
+++ b/lib/doc/ja/Tutorial.lyx
@@ -43,7 +43,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"
diff --git a/lib/doc/ja/UserGuide.lyx b/lib/doc/ja/UserGuide.lyx
index 3743879de6..1e591170b6 100644
--- a/lib/doc/ja/UserGuide.lyx
+++ b/lib/doc/ja/UserGuide.lyx
@@ -78,7 +78,6 @@ LatexType		command
 LatexName		ruby
 BgColor		none
 LabelString		"ルビ"
-MenuString		"ルビ(R)|R"
 Decoration		Conglomerate
 Argument post:1
       LabelString	"ルビ文"