diff --git a/app/views/repositories/diff.html.erb b/app/views/repositories/diff.html.erb
index cb868665a..268aba2f4 100644
--- a/app/views/repositories/diff.html.erb
+++ b/app/views/repositories/diff.html.erb
@@ -13,7 +13,7 @@
 <% end -%>
 
 <% other_formats_links do |f| %>
-	<%= f.link_to 'Diff', :url => params, :caption => 'Unified diff' %>
+  <%= f.link_to 'Diff', :url => params, :caption => 'Unified diff' %>
 <% end %>
 
 <% html_title(h(with_leading_slash(@path)), 'Diff') -%>