2 files changed, 4 insertions, 2 deletions
diff --git a/actionpack/lib/action_dispatch/routing/inspector.rb b/actionpack/lib/action_dispatch/routing/inspector.rb
index 983f1daeb3..6f651a5689 100644
--- a/actionpack/lib/action_dispatch/routing/inspector.rb
+++ b/actionpack/lib/action_dispatch/routing/inspector.rb
@@ -41,7 +41,7 @@ module ActionDispatch
       end
 
       def internal?
-        controller.to_s =~ %r{\Arails/(info|mailers|welcome)}
+        internal
       end
 
       def engine?
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index afbaa45d20..16b430c36e 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -107,6 +107,7 @@ module ActionDispatch
           @ast                = ast
           @anchor             = anchor
           @via                = via
+          @internal           = options[:internal]
 
           path_params = ast.find_all(&:symbol?).map(&:to_sym)
 
@@ -148,7 +149,8 @@ module ActionDispatch
                             required_defaults,
                             defaults,
                             request_method,
-                            precedence)
+                            precedence,
+                            @internal)
 
           route
         end