diff --git a/app/controllers/forums_controller.rb b/app/controllers/forums_controller.rb
index 761a86b..206f01f 100644
--- a/app/controllers/forums_controller.rb
+++ b/app/controllers/forums_controller.rb
@@ -11,7 +11,7 @@ class ForumsController < ApplicationController
     @threads = @forum.forumthreads.select {|f| f.can_read?(current_user) }.to_a
     @threads.sort_by! do |t|
       # sticky goes first, then sort by last activity (new replies)
-      [t.sticky ? 0 : 1, -(t.replies.last.try(:created_at) || t.created_at).to_i]
+      [t.sticky ? 0 : 1, -(t.replies.order(:id).last.try(:created_at) || t.created_at).to_i]
     end
     @threads = Kaminari.paginate_array(@threads).page(params[:page])
   end
diff --git a/app/controllers/threadreplies_controller.rb b/app/controllers/threadreplies_controller.rb
index 946155d..a801fbc 100644
--- a/app/controllers/threadreplies_controller.rb
+++ b/app/controllers/threadreplies_controller.rb
@@ -37,7 +37,7 @@ class ThreadrepliesController < ApplicationController
       if @reply.update_attributes(reply_params)
         @reply.send_new_reply_mail(old_content)
         flash[:notice] = "Reply updated!"
-        position = @reply.thread.replies.index(@reply)
+        position = @reply.thread.replies.order(:id).index(@reply)
         page     = position / Kaminari.config.default_per_page + 1
         redirect_to forumthread_path(@reply.thread, page: page) + "#reply-#{@reply.id}"
       else
diff --git a/app/views/forums/show.html.erb b/app/views/forums/show.html.erb
index b232292..cfe3918 100644
--- a/app/views/forums/show.html.erb
+++ b/app/views/forums/show.html.erb
@@ -38,7 +38,7 @@
         <div class="item <%= "#{"locked" if thread.locked}#{"sticky" if thread.sticky}" %>">
           <%= render partial: "labels/label", locals: {label: thread.label} %><%= link_to truncate(thread.title, length: 60, omission: " …"), forumthread_path(thread), title: thread.title %>
           <div class="item-info">
-            <% if rpl = thread.replies.last %>
+            <% if rpl = thread.replies.order(:id).last %>
               <%= rpl.author.name %>
               <%
                 position = thread.replies.count - 1
diff --git a/app/views/forumthreads/index.html.erb b/app/views/forumthreads/index.html.erb
index 02e425b..0c44352 100644
--- a/app/views/forumthreads/index.html.erb
+++ b/app/views/forumthreads/index.html.erb
@@ -60,7 +60,7 @@
         <div class="item <%= "#{"locked" if thread.locked}#{"sticky" if thread.sticky}" %>">
           <%= render partial: "labels/label", locals: {label: thread.label} %><%= link_to truncate(thread.title, length: 60, omission: " …"), forumthread_path(thread), title: thread.title %>
           <div class="item-info">
-            <% if rpl = thread.replies.last %>
+            <% if rpl = thread.replies.order(:id).last %>
               <%= rpl.author.name %>
               <%
                 position = thread.replies.count - 1
diff --git a/app/views/threadreplies/edit.html.erb b/app/views/threadreplies/edit.html.erb
index c009cb0..8296d9c 100644
--- a/app/views/threadreplies/edit.html.erb
+++ b/app/views/threadreplies/edit.html.erb
@@ -1,7 +1,7 @@
 <% title "Edit Thread Reply: #{@reply.thread.title}" %>
 
 <%
-  position = @reply.thread.replies.index(@reply)
+  position = @reply.thread.replies.order(:id).index(@reply)
   page     = position / Kaminari.config.default_per_page + 1
 %>