diff --git a/boards/static/js/thread_update.js b/boards/static/js/thread_update.js
--- a/boards/static/js/thread_update.js
+++ b/boards/static/js/thread_update.js
@@ -104,6 +104,8 @@ function getThreadDiff() {
                 updatePost(post)
             }
 
+            updateMetadataPanel();
+
             // TODO Process removed posts if any
             $('.metapanel').attr('data-last-update', data.last_update);
         })
@@ -121,8 +123,6 @@ function updatePost(postHtml) {
 
     var threadBlock = $('div.thread');
 
-    var lastUpdate = '';
-
     var postId = post.attr('id');
 
     // If the post already exists, replace it. Otherwise add as a new one.
@@ -139,16 +139,12 @@ function updatePost(postHtml) {
         updateBumplimitProgress(1);
         showNewPostsTitle(1);
 
-        lastUpdate = post.children('.post-info').first()
-            .children('.pub_time').first().html();
-
         if (bottom) {
             scrollToBottom();
         }
     }
 
     processNewPost(post);
-    updateMetadataPanel(lastUpdate)
 }
 
 /**
@@ -186,13 +182,15 @@ function getImageCount() {
  * Update post count, images count and last update time in the metadata
  * panel.
  */
-function updateMetadataPanel(lastUpdate) {
+function updateMetadataPanel() {
     var replyCountField = $('#reply-count');
     var imageCountField = $('#image-count');
 
     replyCountField.text(getReplyCount());
     imageCountField.text(getImageCount());
 
+    var lastUpdate = $('.post:last').children('.post-info').first()
+        .children('.pub_time').first().html();
     if (lastUpdate !== '') {
         var lastUpdateField = $('#last-update');
         lastUpdateField.html(lastUpdate);