diff --git a/core/views/logbooks.py b/core/views/logbooks.py
index 1bcf54d..b3f3176 100644
--- a/core/views/logbooks.py
+++ b/core/views/logbooks.py
@@ -116,7 +116,7 @@ def expedition(request, expeditionname):
             if issunday := (date.weekday() == 6):  # WALRUS
                 pcell["sunday"] = issunday
             prow.append(pcell)
-        personexpodays.append({"personexpedition": personexpedition, "personrow": prow})
+        personexpodays.append({"personexpedition": personexpedition, "personrow": prow, "sortname": personexpedition.person.last_name})
 
     ts[expeditionname] = {
         "year": int(expeditionname),
diff --git a/templates/expedition.html b/templates/expedition.html
index 0aa8d8c..33dcf91 100644
--- a/templates/expedition.html
+++ b/templates/expedition.html
@@ -44,7 +44,7 @@ an "<b>S</b>" for a survey trip.  The colours of the "<b>T</b>" and "<b>S</b>" a
 </th>
 {% endfor %}
 </tr>
-{% for personexpoday in personexpodays %}
+{% for personexpoday in personexpodays|dictsort:"sortname" %}
   <tr>
   <td><a href="{{ personexpoday.personexpedition.get_absolute_url }}">{{personexpoday.personexpedition.person.fullname|safe}}</a></td>
   {% for activities in personexpoday.personrow %}