diff --git a/includes/Article.php b/includes/Article.php
index 3876d77492f..7106bfbd8b8 100644
--- a/includes/Article.php
+++ b/includes/Article.php
@@ -407,7 +407,7 @@ class Article {
 	 */
 	function getSelectOptions( $options = '' ) {
 		if ( $this->mForUpdate ) {
-			if ( $options ) {
+			if ( is_array( $options ) ) {
 				$options[] = 'FOR UPDATE';
 			} else {
 				$options = 'FOR UPDATE';