diff --git a/assets/javascripts/lightbox.js b/assets/javascripts/lightbox.js
index efbda50..cc3da15 100644
--- a/assets/javascripts/lightbox.js
+++ b/assets/javascripts/lightbox.js
@@ -2,7 +2,7 @@ $(document).ready(function() {
 
     // modify thumbnail links in wiki content -> add filename to url to support fancybox preview
     $("div.wiki a.thumbnail").attr('href', function(i, v){
-      return v + '/' + $(this).attr('title').replace(/(.*\.[^.]*)\s\(.*\)/g,'$1');
+      return v.replace(/\/attachments\/(\d+)/g,'/attachments/download/$1') + '/' + $(this).attr('title').replace(/(.*\.[^.]*)\s\(.*\)/g,'$1');
     });
 
     // modify thumbnails and magnifier links in journal details -> add filename to url to support fancybox preview
diff --git a/init.rb b/init.rb
index 198d1a8..6ad58f2 100644
--- a/init.rb
+++ b/init.rb
@@ -7,7 +7,7 @@
   name 'Redmine Lightbox 2'
   author 'Tobias Fischer'
   description 'This plugin lets you preview image, pdf and swf attachments in a lightbox.'
-  version '0.3.0'
+  version '0.3.1'
   url 'https://github.com/paginagmbh/redmine_lightbox2'
   requires_redmine :version_or_higher => '3.3.0'
 end