diff --git a/src/wp-includes/nav-menu.php b/src/wp-includes/nav-menu.php
index 1fe2bc339a..91a102a880 100644
--- a/src/wp-includes/nav-menu.php
+++ b/src/wp-includes/nav-menu.php
@@ -277,15 +277,27 @@ function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) {
 		! is_wp_error( $_possible_existing ) &&
 		isset( $_possible_existing->term_id ) &&
 		$_possible_existing->term_id != $menu_id
-	)
-		return new WP_Error( 'menu_exists', sprintf( __('The menu name <strong>%s</strong> conflicts with another menu name. Please try another.'), esc_html( $menu_data['menu-name'] ) ) );
+	) {
+		return new WP_Error( 'menu_exists',
+			/* translators: %s: menu name */
+			sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
+				'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
+			)
+		);
+	}
 
 	// menu doesn't already exist, so create a new menu
 	if ( ! $_menu || is_wp_error( $_menu ) ) {
 		$menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
 
-		if ( $menu_exists )
-			return new WP_Error( 'menu_exists', sprintf( __('The menu name <strong>%s</strong> conflicts with another menu name. Please try another.'), esc_html( $menu_data['menu-name'] ) ) );
+		if ( $menu_exists ) {
+			return new WP_Error( 'menu_exists',
+				/* translators: %s: menu name */
+				sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
+					'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
+				)
+			);
+		}
 
 		$_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args );