diff --git a/templates/atom.xml b/templates/atom.xml
index 0a9e8c4e..46eb9b7e 100644
--- a/templates/atom.xml
+++ b/templates/atom.xml
@@ -100,19 +100,20 @@
         {% if config.extra.full_content_in_feed %}
             <content type="html">{{ page.content }}</content>
         {% endif -%}
+        {% if page.description or page.summary or config.extra.auto_generate_post_summary %}
         <summary type="xhtml">
-        <!-- xhtml allows multi-paragraph summary -->
             <div xmlns="http://www.w3.org/1999/xhtml">
             {% if page.description -%}
                 <p>{{ page.description | markdown(inline=true) | safe }}</p>
             {% endif %}
             {% if page.summary -%}
-                <p>{{ page.summary | striptags | trim_end_matches(pat=".") | safe }}...</p>
+                <p>{{ page.summary | striptags | trim_end_matches(pat=".") | safe }}…</p>
             {% elif config.extra.auto_generate_post_summary %}
                 <p>{{ page.content | striptags | truncate(length=config.extra.auto_generated_summary_length) | safe }}</p>
             {% endif %}
             </div>
         </summary>
+        {% endif %}
     </entry>
     {%- endfor %}
 </feed>