diff --git a/longs/templates/longs/exam_overview.html b/longs/templates/longs/exam_overview.html
index 1541ad9b..97239ec9 100644
--- a/longs/templates/longs/exam_overview.html
+++ b/longs/templates/longs/exam_overview.html
@@ -32,9 +32,11 @@
             <br />
             {% for series in question.series.all %}
             <div class="series-block">
-                Series {{forloop.counter0 }}:<br />
+                Series {{forloop.counter }}:<br />
                 {{series.get_block}}
             </div>
+            {% empty %}
+            No series
             {% endfor %}
             <div>
                 Author(s): {{question.get_authors}}