diff --git a/rapids/models.py b/rapids/models.py
index 96eab186..85d2aabb 100644
--- a/rapids/models.py
+++ b/rapids/models.py
@@ -408,7 +408,7 @@ class Exam(ExamBase):
 
             if not self.exam_mode:
                 exam_questions[q.id]["feedback_images"] = feedback_images
-                exam_questions[q.id]["answer"] = q.GetCorrectUnstrippedAnswers()
+                exam_questions[q.id]["answer"] = list(q.GetCorrectUnstrippedAnswers())
 
 
             #if feedback_images: