diff --git a/docs/changelog/5.x.x.txt b/docs/changelog/5.x.x.txt
index 4f27abbbe..eae457c00 100644
--- a/docs/changelog/5.x.x.txt
+++ b/docs/changelog/5.x.x.txt
@@ -3,6 +3,8 @@
    one forum in a message board.
  - Fixed a bug introduced in the last version when replying to USS
    submissions.
+ - Fixed a bug introduced in 5.5.0 because the reply.url variable in the USS
+   submission template didn't get updated to reflect the new forum system.
 
 
 5.5.1
diff --git a/lib/WebGUI/Wobject/USS.pm b/lib/WebGUI/Wobject/USS.pm
index d7d0d2d8a..7c45b6edf 100644
--- a/lib/WebGUI/Wobject/USS.pm
+++ b/lib/WebGUI/Wobject/USS.pm
@@ -598,7 +598,7 @@ sub www_viewSubmission {
         $var{"deny.url"} = WebGUI::URL::page('func=denySubmission&wid='.$session{form}{wid}.'&sid='.$session{form}{sid}.'&mlog='.$session{form}{mlog});
 	$var{"deny.label"} = WebGUI::International::get(574);
 	$var{"canReply"} = ($_[0]->get("allowDiscussion"));
-	$var{"reply.url"} = WebGUI::URL::page('func=post&mid=new&wid='.$_[0]->get("wobjectId").'&sid='.$session{form}{sid});
+	$var{"reply.url"} = WebGUI::Forum::UI::formatNewThreadURL($callback,$submission->{forumId});
 	$var{"reply.label"} = WebGUI::International::get(47,$_[0]->get("namespace"));
 	$var{"search.url"} = WebGUI::Search::toggleURL();
 	$var{"search.label"} = WebGUI::International::get(364);