diff --git a/.htaccess b/.htaccess
index 82d37afec5..a301aa9a4d 100644
--- a/.htaccess
+++ b/.htaccess
@@ -3,7 +3,7 @@
     Options +FollowSymLinks
 
     RewriteEngine On
-    RewriteBase /
+    RewriteBase /chamilogits
 
     # Courses home
     RewriteCond %{QUERY_STRING} ^id_session=0
diff --git a/main/exercice/exercise.class.php b/main/exercice/exercise.class.php
index 12c60714f9..fec3f4841b 100644
--- a/main/exercice/exercise.class.php
+++ b/main/exercice/exercise.class.php
@@ -1110,7 +1110,7 @@ class Exercise
     {
         $TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST);
         $sql = "UPDATE $TBL_EXERCICES
-                SET active='-1' WHERE c_id = ".$this->course_id." AND id='".Database::escape_string($this->id)."'";
+                SET active='-1' WHERE c_id = ".$this->course_id." AND iid='".Database::escape_string($this->id)."'";
         Database::query($sql);
         api_item_property_update($this->course, TOOL_QUIZ, $this->id, 'QuizDeleted', api_get_user_id());
         $this->delete_exercise_order();