diff --git a/app/helpers/admin/file_preview_helper.rb b/app/helpers/admin/file_preview_helper.rb
index c20bd7f84..3910ac292 100644
--- a/app/helpers/admin/file_preview_helper.rb
+++ b/app/helpers/admin/file_preview_helper.rb
@@ -45,7 +45,7 @@ def typus_file_preview_for_carrierwave(attachment, options = {})
       if !attachment.url.nil?
         render "admin/helpers/file_preview",
                :preview => attachment.url,
-               :thumb => "/thumb" + attachment.url + "?w=80&h=80",
+               :thumb => "/thumb" + attachment.url + "?w=80",
                :options => options
       else
         "no image"