diff --git a/ActiveRecord.php b/ActiveRecord.php
index 9f7c07b..2937437 100644
--- a/ActiveRecord.php
+++ b/ActiveRecord.php
@@ -364,7 +364,7 @@ abstract class ActiveRecord extends BaseActiveRecord
      */
     protected function deleteInternal()
     {
-        $condition = $this->getOldPrimaryKey();
+        $condition = $this->getOldPrimaryKey(true);
         $lock = $this->optimisticLock();
         if ($lock !== null) {
             $condition[$lock] = $this->$lock;