diff --git a/lib/routing_filter/adapters/rails.rb b/lib/routing_filter/adapters/rails.rb
index fafb39c..d227715 100644
--- a/lib/routing_filter/adapters/rails.rb
+++ b/lib/routing_filter/adapters/rails.rb
@@ -12,7 +12,7 @@ def filter(*args)
   end
 end
 
-ActionDispatch::Routing::RouteSet.class_eval do
+module ActionDispatchRoutingRouteSetWithFiltering
   def filters
     @set.filters if @set
   end
@@ -22,23 +22,24 @@ def add_filters(*names)
     names.each { |name| filters.unshift(RoutingFilter.build(name, options)) }
   end
 
-  def generate_with_filtering(route_key, options, recall = {})
+  def generate(route_key, options, recall = {})
     options = options.symbolize_keys
 
     # `around_generate` is destructive method and it breaks url. To avoid this, `dup` is required.
     filters.run(:around_generate, options, &lambda{
-      generate_without_filtering(route_key, options, recall).map(&:dup)
+      super(route_key, options, recall).map(&:dup)
     })
   end
-  alias_method_chain :generate, :filtering
 
-  def clear_with_filtering!
+  def clear!
     filters.clear if filters
-    clear_without_filtering!
+    super!
   end
-  alias_method_chain :clear!, :filtering
 end
 
+ActionDispatch::Routing::RouteSet.send(:prepend, ActionDispatchRoutingRouteSetWithFiltering)
+
+
 ActionDispatch::Journey::Routes.class_eval do
   def filters
     @filters || RoutingFilter::Chain.new.tap { |f| @filters = f unless frozen? }
diff --git a/lib/routing_filter/adapters/routers/journey.rb b/lib/routing_filter/adapters/routers/journey.rb
index 30ae9d5..a700e2b 100644
--- a/lib/routing_filter/adapters/routers/journey.rb
+++ b/lib/routing_filter/adapters/routers/journey.rb
@@ -4,8 +4,8 @@ def filters
   end
 end
 
-ActionDispatch::Journey::Router.class_eval do
-  def find_routes_with_filtering(env)
+module ActionDispatchJourneyRouterWithFiltering
+  def find_routes(env)
     path = env.is_a?(Hash) ? env['PATH_INFO'] : env.path_info
     filter_parameters = {}
     original_path = path.dup
@@ -14,7 +14,7 @@ def find_routes_with_filtering(env)
       filter_parameters
     end
 
-    find_routes_without_filtering(env).map do |match, parameters, route|
+    super(env).map do |match, parameters, route|
       [ match, parameters.merge(filter_parameters), route ]
     end.tap do |match, parameters, route|
       # restore the original path
@@ -25,5 +25,6 @@ def find_routes_with_filtering(env)
       end
     end
   end
-  alias_method_chain :find_routes, :filtering
 end
+
+ActionDispatch::Journey::Router.send(:prepend, ActionDispatchJourneyRouterWithFiltering)
\ No newline at end of file