diff --git a/main/exercice/question.class.php b/main/exercice/question.class.php
index 66f7fda750..d24a61bd70 100644
--- a/main/exercice/question.class.php
+++ b/main/exercice/question.class.php
@@ -1200,9 +1200,9 @@ abstract class Question
 		// default content
 		$isContent = isset($_REQUEST['isContent']) ? intval($_REQUEST['isContent']) : null;
 
-		// question type
-		$answerType= intval($_REQUEST['answerType']);
-		$form->addElement('hidden','answerType',$_REQUEST['answerType']);
+		// Question type
+        $answerType = isset($_REQUEST['answerType']) ? intval($_REQUEST['answerType']) : null;
+		$form->addElement('hidden','answerType', $_REQUEST['answerType']);
 
 		// html editor
 		$editor_config = array('ToolbarSet' => 'TestQuestionDescription', 'Width' => '100%', 'Height' => '150');
@@ -1223,7 +1223,8 @@ abstract class Question
 		$form->addElement ('html','</div>');
 
         // hidden values
-		$form->addElement('hidden', 'myid', intval($_REQUEST['myid']));
+        $my_id = isset($_REQUEST['myid']) ? intval($_REQUEST['myid']) : null;
+		$form->addElement('hidden', 'myid', $my_id);
 
         if ($this->type != MEDIA_QUESTION) {