diff --git a/app/views/welcome/robots.html.erb b/app/views/welcome/robots.html.erb
--- a/app/views/welcome/robots.html.erb
+++ b/app/views/welcome/robots.html.erb
@@ -1,10 +1,10 @@
 User-agent: *
 <% @projects.each do |p| -%>
-Disallow: /projects/<%= p.to_param %>/repository
-Disallow: /projects/<%= p.to_param %>/issues
-Disallow: /projects/<%= p.to_param %>/activity
+Disallow: <%= url_for(:controller => 'repositories', :action => :show, :id => p) %>
+Disallow: <%= url_for(project_issues_path(:project_id => p)) %>
+Disallow: <%= url_for(project_activity_path(:id => p)) %>
 <% end -%>
-Disallow: /issues/gantt
-Disallow: /issues/calendar
-Disallow: /activity
-Disallow: /search
+Disallow: <%= url_for(issues_gantt_path) %>
+Disallow: <%= url_for(issues_calendar_path) %>
+Disallow: <%= url_for(activity_path) %>
+Disallow: <%= url_for(search_path) %>