diff --git a/lib/jekyll/related_posts.rb b/lib/jekyll/related_posts.rb
index bdeb2240..f3040c1b 100644
--- a/lib/jekyll/related_posts.rb
+++ b/lib/jekyll/related_posts.rb
@@ -46,7 +46,8 @@ module Jekyll
     end
 
     def most_recent_posts
-      (self.site.posts - [self.post])[0..9]
+      recent_posts = self.site.posts.reverse - [self.post]
+      recent_posts.first(10)
     end
 
     def display(output)
diff --git a/test/test_related_posts.rb b/test/test_related_posts.rb
index 98833f2f..6111a224 100644
--- a/test/test_related_posts.rb
+++ b/test/test_related_posts.rb
@@ -13,7 +13,12 @@ class TestRelatedPosts < Test::Unit::TestCase
     should "use the most recent posts for related posts" do
       @site.reset
       @site.read
-      assert_equal @site.posts[0..9], Jekyll::RelatedPosts.new(@site.posts.last).build
+
+      last_post     = @site.posts.last
+      related_posts = Jekyll::RelatedPosts.new(last_post).build
+
+      last_10_recent_posts = (@site.posts.reverse - [last_post]).first(10)
+      assert_equal last_10_recent_posts, related_posts
     end
   end