diff --git a/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php b/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php
index 06ddcbd5a2..76d67073b1 100644
--- a/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php
+++ b/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php
@@ -122,6 +122,7 @@ class CQuizAnswer
     public function __construct()
     {
         $this->id = null;
+        $this->idAuto = 0;
         $this->correct = null;
         $this->comment = null;
         $this->ponderation = 0;