diff --git a/app/views/topics/plain.html.erb b/app/views/topics/plain.html.erb
index 93e94d2f093..7c852a3b691 100644
--- a/app/views/topics/plain.html.erb
+++ b/app/views/topics/plain.html.erb
@@ -11,7 +11,7 @@
 <% @topic_view.posts.each do |post| %>
   <% if post.user %>
     <div class='creator'>
-      <b><%= post.user.username_lower %></b> <%= "(#{post.user.name})" if SiteSetting.display_name_on_posts %> at <%= post.created_at.to_formatted_s(:long_ordinal) %> — #<%= post.post_number %>
+      <b><%= post.user.username %></b> <%= "(#{post.user.name})" if SiteSetting.display_name_on_posts %> at <%= post.created_at.to_formatted_s(:long_ordinal) %> — #<%= post.post_number %>
     </div>
     <div class='post'>
       <% if post.hidden %>
diff --git a/app/views/topics/show.html.erb b/app/views/topics/show.html.erb
index 8a5128e48a4..0dd0088e608 100644
--- a/app/views/topics/show.html.erb
+++ b/app/views/topics/show.html.erb
@@ -9,7 +9,7 @@
 <% @topic_view.posts.each do |post| %>
   <% if post.user %>
     <div class='creator'>
-      <b><%= post.user.username_lower %></b>
+      <b><%= post.user.username %></b>
        <%= "(#{post.user.name})" if SiteSetting.display_name_on_posts %> —
        <%= post.created_at.to_formatted_s(:iso8601) %> —
        #<%= post.post_number %>