diff --git a/framework/yii/db/ActiveQuery.php b/framework/yii/db/ActiveQuery.php
index 48af835..375e91f 100644
--- a/framework/yii/db/ActiveQuery.php
+++ b/framework/yii/db/ActiveQuery.php
@@ -227,7 +227,7 @@ class ActiveQuery extends Query
 	 */
 	public function indexBy($column)
 	{
-		parent::indexBy($column);
+		return parent::indexBy($column);
 	}
 
 	private function createModels($rows)