diff --git a/mod/quiz/quiz.js b/mod/quiz/quiz.js
index c8c088c4b89..2ced50fc1c9 100644
--- a/mod/quiz/quiz.js
+++ b/mod/quiz/quiz.js
@@ -21,7 +21,7 @@ are actually on the submit button. Don't stop the user typing things in text are
 function check_enter(e) {
     var target = e.target ? e.target : e.srcElement;
     var keyCode = e.keyCode ? e.keyCode : e.which;
-    if (keyCode==13 && target.nodeName!='a' &&
+    if (keyCode==13 && target.nodeName.toLowerCase()!='a' &&
             (!target.type || !(target.type=='submit' || target.type=='textarea'))) {
         return false;
     } else {