diff --git a/longs/forms.py b/longs/forms.py
index 94b20fb3..8e6faeb0 100755
--- a/longs/forms.py
+++ b/longs/forms.py
@@ -272,4 +272,5 @@ class ExamForm(ExamFormMixin, ModelForm):
 
 class ExamAuthorForm(ExamAuthorFormMixin):
     class Meta(ExamAuthorFormMixin.Meta):
-        model = Exam
\ No newline at end of file
+        model = Exam
+        fields = ExamAuthorFormMixin.Meta.fields.append("double_mark")
\ No newline at end of file