1 files changed, 5 insertions, 2 deletions
diff --git a/templates/pages/show.jinja b/templates/pages/show.jinja
index e7d340e..895a107 100644
--- a/templates/pages/show.jinja
+++ b/templates/pages/show.jinja
@@ -32,11 +32,14 @@
         <br>
     {% endfor %}
 
+    {# Note: exps are given _reversed_, i.e. "exps | last" is
+       the _first_ on the timeline #}
     {% set d = prev_date(exps | last) %}
     {{ left_arrow(url_for(".show_date", **d), d | date) }}
 
-    {% if not is_last %}
-        {% set d = next_date(exps | last) %}
+    {% set first = exps | first %}
+    {% if not is_last(first) %}
+        {% set d = next_date(first) %}
         {{ right_arrow(url_for(".show_date", **d), d | date) }}
     {% endif %}
 {% endblock content %}