diff --git a/src/wp-includes/comment-template.php b/src/wp-includes/comment-template.php
index dee3c9da26..355288834f 100644
--- a/src/wp-includes/comment-template.php
+++ b/src/wp-includes/comment-template.php
@@ -1290,7 +1290,9 @@ function comments_popup_link( $zero = false, $one = false, $more = false, $css_c
 	}
 	if ( false === $more ) {
 		/* translators: 1: Opening span tag with a class, 2: post title, 3: closing span tag, 4: number of comments */
-		$more = sprintf( __( '%4$d Comments%1$s on %2$s%3$s' ), $span, $title, $span_close, $number );
+		$more = sprintf( _n( '%4$d Comment%1$s on %2$s%3$s', '%4$d Comments%1$s on %2$s%3$s', $number ),
+			$span, $title, $span_close, number_format_i18n( $number )
+		);
 	}
 	if ( false === $none ) {
 		/* translators: 1: Opening span tag with a class, 2: post title, 3: closing span tag */