diff --git a/app/assets/javascripts/discourse/templates/components/latest-topic-list-item.hbs b/app/assets/javascripts/discourse/templates/components/latest-topic-list-item.hbs
index 8a64a53e8..a4d228365 100644
--- a/app/assets/javascripts/discourse/templates/components/latest-topic-list-item.hbs
+++ b/app/assets/javascripts/discourse/templates/components/latest-topic-list-item.hbs
@@ -2,9 +2,9 @@
   <tbody>
     <tr data-topic-id={{topic.id}} class="{{if topic.archived 'archived'}}">
       <td class="topic-poster">
-        {{#with topic.creator as |op|}}
-          {{#user-link user=op}}
-            {{avatar op imageSize="large"}}
+        {{#with topic.lastPoster as |lastPoster|}}
+          {{#user-link user=lastPoster}}
+            {{avatar lastPoster imageSize="large"}}
           {{/user-link}}
         {{/with}}
       </td>
diff --git a/app/serializers/category_and_topic_lists_serializer.rb b/app/serializers/category_and_topic_lists_serializer.rb
index 1e81bad84..239bc0798 100644
--- a/app/serializers/category_and_topic_lists_serializer.rb
+++ b/app/serializers/category_and_topic_lists_serializer.rb
@@ -1,4 +1,16 @@
 class CategoryAndTopicListsSerializer < ApplicationSerializer
   has_one :category_list, serializer: CategoryListSerializer, embed: :objects
   has_one :topic_list, serializer: TopicListSerializer, embed: :objects
+  has_many :users, serializer: BasicUserSerializer, embed: :objects
+
+  def users
+    users = object.topic_list.topics.map do |t|
+      t.posters.map{|poster| poster.try(:user)}
+    end
+    users.flatten!
+    users.compact!
+    users.uniq!(&:id)
+    users
+  end
+
 end