1 files changed, 3 insertions, 9 deletions
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index 948cbdc014..ce04f0b08a 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -395,9 +395,11 @@ module ActionDispatch
         return if MountedHelpers.method_defined?(name)
 
         routes = self
+        helpers = routes.url_helpers
+
         MountedHelpers.class_eval do
           define_method "_#{name}" do
-            RoutesProxy.new(routes, _routes_context)
+            RoutesProxy.new(routes, _routes_context, helpers)
           end
         end
 
@@ -409,14 +411,6 @@ module ActionDispatch
       end
 
       def url_helpers(supports_path = true)
-        if supports_path
-          @url_helpers_with_paths ||= generate_url_helpers(supports_path)
-        else
-          @url_helpers_without_paths ||= generate_url_helpers(supports_path)
-        end
-      end
-
-      def generate_url_helpers(supports_path)
         routes = self
 
         Module.new do