diff --git a/sbas/views.py b/sbas/views.py
index eae1d3c7..a73278fa 100644
--- a/sbas/views.py
+++ b/sbas/views.py
@@ -253,7 +253,7 @@ def exam_take(request, pk, sk, cid):
     pos = exam.get_question_index(question) + 1
 
     answer = question.cid_user_answers.filter(
-        cid=cid)
+        cid=cid).first()
 
     if request.method == "POST":
         if answer: