diff --git a/src/wp-includes/bookmark.php b/src/wp-includes/bookmark.php
index 674269e23b737..e48727343425a 100644
--- a/src/wp-includes/bookmark.php
+++ b/src/wp-includes/bookmark.php
@@ -40,14 +40,15 @@ function get_bookmark( $bookmark, $output = OBJECT, $filter = 'raw' ) {
 			if ( ! $_bookmark ) {
 				$_bookmark = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->links WHERE link_id = %d LIMIT 1", $bookmark ) );
 				if ( $_bookmark ) {
-					$_bookmark->link_category = array_unique( wp_get_object_terms( $_bookmark->link_id, 'link_category', array( 'fields' => 'ids' ) ) );
+					$link_category            = wp_get_object_terms( $_bookmark->link_id, 'link_category', array( 'fields' => 'ids' ) );
+					$_bookmark->link_category = array_unique( $link_category );
 					wp_cache_add( $_bookmark->link_id, $_bookmark, 'bookmark' );
 				}
 			}
 		}
 	}
 
-	if ( ! $_bookmark ) {
+	if ( empty( $_bookmark ) ) {
 		return $_bookmark;
 	}