1 files changed, 3 insertions, 3 deletions
diff --git a/actionpack/lib/action_dispatch/routing/polymorphic_routes.rb b/actionpack/lib/action_dispatch/routing/polymorphic_routes.rb
index f2ce175cac..1a7944780b 100644
--- a/actionpack/lib/action_dispatch/routing/polymorphic_routes.rb
+++ b/actionpack/lib/action_dispatch/routing/polymorphic_routes.rb
@@ -254,7 +254,7 @@ module ActionDispatch
                    @key_strategy.call model.model_name
                  end
 
-          named_route = "#{prefix}#{name}_#{suffix}"
+          named_route = get_method_for_string name
 
           [named_route, args]
         end
@@ -309,11 +309,11 @@ module ActionDispatch
 
         def get_method_for_class(klass)
           name   = @key_strategy.call klass.model_name
-          prefix + "#{name}_#{suffix}"
+          get_method_for_string name
         end
 
         def get_method_for_string(str)
-          prefix + "#{str}_#{suffix}"
+          "#{prefix}#{str}_#{suffix}"
         end
 
         [nil, 'new', 'edit'].each do |action|