diff --git a/languages/messages/MessagesAlt.php b/languages/messages/MessagesAlt.php
index 68955bd5d05..dcce0ba86de 100644
--- a/languages/messages/MessagesAlt.php
+++ b/languages/messages/MessagesAlt.php
@@ -12,7 +12,6 @@ $fallback = 'ru';
 $namespaceNames = [
 	NS_MEDIA            => 'Медиа',
 	NS_SPECIAL          => 'Аҥылу',
-	NS_MAIN             => '',
 	NS_TALK             => 'Шӱӱжӱ',
 	NS_USER             => 'Туружаачы',
 	NS_USER_TALK        => 'Туружаачыны_шӱӱжери',
diff --git a/languages/messages/MessagesInh.php b/languages/messages/MessagesInh.php
index c3a2a7d1c98..59853a59abd 100644
--- a/languages/messages/MessagesInh.php
+++ b/languages/messages/MessagesInh.php
@@ -13,7 +13,6 @@ $fallback = 'ru';
 $namespaceNames = [
 	NS_MEDIA            => 'Медиа',
 	NS_SPECIAL          => 'Гӏулакха',
-	NS_MAIN             => '',
 	NS_TALK             => 'Ювцар',
 	NS_USER             => 'Доакъашхо',
 	NS_USER_TALK        => 'Доакъашхочун_дувцар',
diff --git a/languages/messages/MessagesMad.php b/languages/messages/MessagesMad.php
index d993560cb36..f01b8976f2c 100644
--- a/languages/messages/MessagesMad.php
+++ b/languages/messages/MessagesMad.php
@@ -11,7 +11,6 @@
 $namespaceNames = [
 	NS_MEDIA            => 'Mèḍia',
 	NS_SPECIAL          => 'Spesial',
-	NS_MAIN             => '',
 	NS_TALK             => 'Pakanḍhâ\'ân',
 	NS_USER             => 'Pangangghuy',
 	NS_USER_TALK        => 'Pakanḍhâ\'ânna_pangangghuy',
diff --git a/languages/messages/MessagesNia.php b/languages/messages/MessagesNia.php
index 4f108bcbb5b..01b2dbd9c24 100644
--- a/languages/messages/MessagesNia.php
+++ b/languages/messages/MessagesNia.php
@@ -10,7 +10,6 @@
 $namespaceNames = [
 	NS_MEDIA            => 'Media',
 	NS_SPECIAL          => 'Si_tohude',
-	NS_MAIN             => '',
 	NS_TALK             => 'Huhuo',
 	NS_USER             => 'Sangoguna',
 	NS_USER_TALK        => 'Huhuo_zangoguna',
diff --git a/languages/messages/MessagesSat.php b/languages/messages/MessagesSat.php
index 20fdc2cfae5..f70909412c9 100644
--- a/languages/messages/MessagesSat.php
+++ b/languages/messages/MessagesSat.php
@@ -11,7 +11,6 @@
 $namespaceNames = [
 	NS_MEDIA            => 'ᱢᱤᱰᱤᱭᱟ',
 	NS_SPECIAL          => 'ᱟᱥᱚᱠᱟᱭ',
-	NS_MAIN             => 'ᱢᱩᱬᱩᱛ',
 	NS_TALK             => 'ᱜᱟᱞᱢᱟᱨᱟᱣ',
 	NS_USER             => 'ᱵᱮᱵᱷᱟᱨᱤᱭᱟᱹ',
 	NS_USER_TALK        => 'ᱵᱮᱵᱷᱟᱨᱤᱭᱟᱹ_ᱜᱟᱞᱢᱟᱨᱟᱣ',