diff --git a/sbas/templates/sbas/exam_take.html b/sbas/templates/sbas/exam_take.html
index 45630ba3..61de3e44 100755
--- a/sbas/templates/sbas/exam_take.html
+++ b/sbas/templates/sbas/exam_take.html
@@ -1,6 +1,7 @@
 {% extends 'base.html' %}
 
 {% block content %}
+CID: {{cid}}
 
 <h2>Question [{{pos}}/{{exam_length}}]</h2>
  
diff --git a/sbas/urls.py b/sbas/urls.py
index 0dd2c19b..34368e5e 100644
--- a/sbas/urls.py
+++ b/sbas/urls.py
@@ -12,7 +12,7 @@ urlpatterns = [
     #path("question/<int:pk>/update", views.QuestionUpdate.as_view(), name="anatomy_question_update"),
     #path("exam/<int:pk>/<int:sk>/mark", views.mark, name="mark"),
     #path("exam/<int:pk>/mark", views.mark_overview, name="mark_overview"),
-    path("exam/<int:pk>/<int:sk>/<int:cid>/take", views.exam_take, name="exam_take"),
+    path("exam/<int:pk>/<int:sk>/<str:cid>/take", views.exam_take, name="exam_take"),
     path("exam/<int:pk>/start", views.exam_start, name="exam_start"),
     path("exam/<int:pk>/", views.SbasExamViews.exam_overview, name="exam_overview"),
     path("exam/<int:pk>/scores", views.exam_scores_cid,