diff --git a/tabellio/quiz/form.py b/tabellio/quiz/form.py
index 9d51d33..f8152a3 100644
--- a/tabellio/quiz/form.py
+++ b/tabellio/quiz/form.py
@@ -63,8 +63,11 @@ class EffectiveQuizForm(form.Form):
             question_title = question_lines[0]
             question_answers = [x[2:] for x in question_lines[1:]]
             self.good_answers['q%s' % (i+1)] = [x[2:] for x in question_lines[1:] if x.startswith('o')]
+            terms = [SimpleVocabulary.createTerm(x, x.encode('ascii', 'ignore'), x)
+                     for x in question_answers]
+            question_vocabulary = SimpleVocabulary(terms)
             question_field = schema.Choice(title=question_title,
-                                           values=question_answers,
+                                           vocabulary=question_vocabulary,
                                            required=False)
             question_field.__name__ = 'q%s' % (i+1)
             question_field.widgetFactory = RadioFieldWidget