diff --git a/mod/quiz/module.js b/mod/quiz/module.js
index 6a752e00d1b..a6c021580ec 100644
--- a/mod/quiz/module.js
+++ b/mod/quiz/module.js
@@ -186,11 +186,11 @@ M.mod_quiz.secure_window = {
         if (window.location.href.substring(0, 4) == 'file') {
             window.location = 'about:blank';
         }
-        Y.delegate('contextmenu', M.mod_quiz.secure_window.prevent, document.body, '*');
-        Y.delegate('mousedown', M.mod_quiz.secure_window.prevent_mouse, document.body, '*');
-        Y.delegate('mouseup', M.mod_quiz.secure_window.prevent_mouse, document.body, '*');
-        Y.delegate('dragstart', M.mod_quiz.secure_window.prevent, document.body, '*');
-        Y.delegate('selectstart', M.mod_quiz.secure_window.prevent, document.body, '*');
+        Y.delegate('contextmenu', M.mod_quiz.secure_window.prevent, document, '*');
+        Y.delegate('mousedown', M.mod_quiz.secure_window.prevent_mouse, document, '*');
+        Y.delegate('mouseup', M.mod_quiz.secure_window.prevent_mouse, document, '*');
+        Y.delegate('dragstart', M.mod_quiz.secure_window.prevent, document, '*');
+        Y.delegate('selectstart', M.mod_quiz.secure_window.prevent, document, '*');
         M.mod_quiz.secure_window.clear_status;
         Y.on('beforeprint', function() {
             Y.one(document.body).setStyle('display', 'none');