diff --git a/boards/templates/boards/post.html b/boards/templates/boards/post.html
--- a/boards/templates/boards/post.html
+++ b/boards/templates/boards/post.html
@@ -1,6 +1,7 @@
 {% load i18n %}
 {% load board %}
 
+{% cache 300 post post.id post.thread_new.last_edit_time truncated moderator LANGUAGE_CODE need_open_link %}
 {% spaceless %}
 {% if post.thread_new.archived %}
     <div class="post archive_post" id="{{ post.id }}">
@@ -81,3 +82,4 @@
 {% endif %}
 </div>
 {% endspaceless %}
+{% cache 300 post post.id post.thread_new.last_edit_time truncated moderator LANGUAGE_CODE need_open_link %}