diff --git a/i18n/en.json b/i18n/en.json
index 35de53c..5a14723 100644
--- a/i18n/en.json
+++ b/i18n/en.json
@@ -11,6 +11,7 @@
 	"vector.css": "/* All CSS here will be loaded for users of the Vector skin */",
 	"vector.js": "/* All JavaScript here will be loaded for users of the Vector skin */",
 	"vector-action-toggle-sidebar": "Toggle sidebar",
+	"vector-language-button-label": "{{PLURAL:$1|$1 language|$1 languages}}",
 	"vector-action-addsection": "Add topic",
 	"vector-action-delete": "Delete",
 	"vector-action-move": "Move",
diff --git a/i18n/qqq.json b/i18n/qqq.json
index fb57216..e7bb330 100644
--- a/i18n/qqq.json
+++ b/i18n/qqq.json
@@ -22,6 +22,7 @@
 	"vector.css": "{{optional}}",
 	"vector.js": "{{optional}}",
 	"vector-action-toggle-sidebar": "Accessibility label for the button that toggles the sidebar's visibility, as well as audible presentation for screen readers.",
+	"vector-language-button-label": "Label for language button in modern Vector.\nArguments:\n - $1 number of languages, supports plural",
 	"vector-action-addsection": "Used in the Vector skin. See for example {{canonicalurl:Talk:Main_Page|useskin=vector}}\n{{Identical|Add topic}}",
 	"vector-action-delete": "Used in the Vector skin, as the name of a tab at the top of the page. See for example {{canonicalurl:Translating:MediaWiki|useskin=vector}}\n\n{{Identical|Delete}}",
 	"vector-action-move": "Used in the Vector skin, on the tabs at the top of the page. See for example {{canonicalurl:Talk:Main_Page|useskin=vector}}\n\n{{Identical|Move}}",
diff --git a/includes/SkinVector.php b/includes/SkinVector.php
index dbfae39..6d2812d 100644
--- a/includes/SkinVector.php
+++ b/includes/SkinVector.php
@@ -231,6 +231,12 @@ class SkinVector extends SkinMustache {
 			self::MENU_TYPE_PORTAL => 'vector-menu vector-menu-portal portal',
 			self::MENU_TYPE_DEFAULT => 'vector-menu',
 		];
+		if ( $portletData['id'] === 'p-lang' && $this->isLanguagesInHeader() ) {
+			$portletData['label'] = $this->msg(
+				'vector-language-button-label',
+				count( $this->getLanguages() )
+			)->parse();
+		}
 		$class = $portletData['class'];
 		$portletData['class'] = trim( "$class $extraClasses[$type]" );
 		return $portletData;