diff --git a/config/routes.rb b/config/routes.rb
index 15aa87de4..540f3d0af 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -300,12 +300,12 @@ Rails.application.routes.draw do
   get "projects/:id/repository/:repository_id/revisions/:rev/diff(/*path)",
       :to => 'repositories#diff',
       :format => 'html',
-      :constraints => {:rev => /[a-z0-9\.\-_]+/, :path => /.*/, format: /(html|diff)/ }
+      :constraints => {:rev => /[a-z0-9\.\-_]+/, :path => /.*/, :format => /(html|diff)/ }
 
   get "projects/:id/repository/:repository_id/diff(/*path)",
       :to => 'repositories#diff',
       :format => 'html',
-      :constraints => {:path => /.*/, format: /(html|diff)/ }
+      :constraints => {:path => /.*/, :format => /(html|diff)/ }
 
   get 'projects/:id/repository/:repository_id/show/*path', :to => 'repositories#show', :format => 'html', :constraints => {:path => /.*/}