diff --git a/lib/jekyll/post.rb b/lib/jekyll/post.rb
index 4171c735..914cfd59 100644
--- a/lib/jekyll/post.rb
+++ b/lib/jekyll/post.rb
@@ -114,7 +114,7 @@ module Jekyll
     def template
       case self.site.permalink_style
       when :pretty
-        "/:categories/:year/:month/:day/:title"
+        "/:categories/:year/:month/:day/:title/"
       when :none
         "/:categories/:title.html"
       when :date
diff --git a/test/test_post.rb b/test/test_post.rb
index b6585cc0..f6816be0 100644
--- a/test/test_post.rb
+++ b/test/test_post.rb
@@ -128,8 +128,8 @@ class TestPost < Test::Unit::TestCase
           end
 
           should "process the url correctly" do
-            assert_equal "/:categories/:year/:month/:day/:title", @post.template
-            assert_equal "/2008/10/19/foo-bar", @post.url
+            assert_equal "/:categories/:year/:month/:day/:title/", @post.template
+            assert_equal "/2008/10/19/foo-bar/", @post.url
           end
         end