diff --git src/wp-includes/customize/class-wp-customize-nav-menu-item-setting.php src/wp-includes/customize/class-wp-customize-nav-menu-item-setting.php
index 8bffb0e..c338c88 100644
--- src/wp-includes/customize/class-wp-customize-nav-menu-item-setting.php
+++ src/wp-includes/customize/class-wp-customize-nav-menu-item-setting.php
@@ -273,11 +273,8 @@ class WP_Customize_Nav_Menu_Item_Setting extends WP_Customize_Setting {
 	 * @return string The original title.
 	 */
 	protected function get_original_title( $item ) {
-		if ( empty( $item->object_id ) ) {
-			return '';
-		}
 		$original_title = '';
-		if ( 'post_type' === $item->type ) {
+		if ( 'post_type' === $item->type && ! empty( $item->object_id ) ) {
 			$original_object = get_post( $item->object_id );
 			if ( $original_object ) {
 				/** This filter is documented in wp-includes/post-template.php */
@@ -288,11 +285,16 @@ class WP_Customize_Nav_Menu_Item_Setting extends WP_Customize_Setting {
 					$original_title = sprintf( __( '#%d (no title)' ), $original_object->ID );
 				}
 			}
-		} elseif ( 'taxonomy' === $item->type ) {
+		} elseif ( 'taxonomy' === $item->type && ! empty( $item->object_id ) ) {
 			$original_term_title = get_term_field( 'name', $item->object_id, $item->object, 'raw' );
 			if ( ! is_wp_error( $original_term_title ) ) {
 				$original_title = $original_term_title;
 			}
+		} elseif ( 'post_type_archive' === $item->type ) {
+			$original_object = get_post_type_object( $item->object );
+			if ( $original_object ) {
+				$original_title = $original_object->labels->archives;
+			}
 		}
 		$original_title = html_entity_decode( $original_title, ENT_QUOTES, get_bloginfo( 'charset' ) );
 		return $original_title;