diff --git a/templates/partials/packages/details.html b/templates/partials/packages/details.html
index e0eda54c..9b1b63d6 100644
--- a/templates/partials/packages/details.html
+++ b/templates/partials/packages/details.html
@@ -157,6 +157,13 @@
         <th>{{ "Last Updated" | tr }}:</th>
         <td>{{ datetime_display(pkgbase.ModifiedTS) }}</td>
     </tr>
+    {# Hide architecture for older packages for which we lack this data. #}
+    {% if pkg.Arch %}
+    <tr>
+        <th>{{ "Architecture" | tr }}:</th>
+        <td>{{ pkg.Arch }}</td>
+    </tr>
+    {% endif %}
 </table>
 
 <script type="text/javascript" src="/static/js/copy.js"></script>