diff --git a/Echo.php b/Echo.php
index d4777f5ad..ced1f47d2 100644
--- a/Echo.php
+++ b/Echo.php
@@ -174,6 +174,7 @@ $wgResourceModules += array(
 		'dependencies' => array(
 			'ext.echo.desktop',
 			'mediawiki.util',
+			'mediawiki.language',
 		),
 		'messages' => array(
 			'echo-overlay-title',
diff --git a/modules/overlay/ext.echo.overlay.js b/modules/overlay/ext.echo.overlay.js
index 55ddda8fc..eaa6e2295 100644
--- a/modules/overlay/ext.echo.overlay.js
+++ b/modules/overlay/ext.echo.overlay.js
@@ -123,7 +123,11 @@
 
 				if ( notifications.index.length > 0 ) {
 					if ( unreadRawTotalCount > unread.length ) {
-						titleText = mw.msg( 'echo-overlay-title-overflow', unread.length, unreadTotalCount );
+						titleText = mw.msg(
+							'echo-overlay-title-overflow',
+							mw.language.convertNumber( unread.length ),
+							mw.language.convertNumber( unreadTotalCount )
+						);
 						overflow = true;
 					} else {
 						titleText =  mw.msg( 'echo-overlay-title' );