diff --git a/app/views/common/_diff.rhtml b/app/views/common/_diff.rhtml
index 0b28101b7..07bd4745f 100644
--- a/app/views/common/_diff.rhtml
+++ b/app/views/common/_diff.rhtml
@@ -1,4 +1,4 @@
-<% Redmine::UnifiedDiff.new(diff, diff_type).each do |table_file| -%>
+<% Redmine::UnifiedDiff.new(diff, :type => diff_type).each do |table_file| -%>
 <div class="autoscroll">
 <% if diff_type == 'sbs' -%>
 <table class="filecontent CodeRay">