diff --git a/longs/models.py b/longs/models.py
index ec5b654b..b901c21d 100644
--- a/longs/models.py
+++ b/longs/models.py
@@ -171,7 +171,7 @@ class Long(models.Model):
 
         #exam_order.append(q.id)
         path= "{0}longs/questions/{1}".format(settings.MEDIA_ROOT, question_id)
-        with open(path, "w") as f:
+        with open(path, "w+") as f:
             # Loop through longimage associations
             f.write("[")
             images = []