diff --git a/actionpack/lib/action_dispatch/journey/router.rb b/actionpack/lib/action_dispatch/journey/router.rb
index caa7a3ff5114fa69d5baa899f4d95b5c086f5a8e..d0ef54933518128ab6995abbe39da83e5f44767d 100644
--- a/actionpack/lib/action_dispatch/journey/router.rb
+++ b/actionpack/lib/action_dispatch/journey/router.rb
@@ -72,7 +72,9 @@ def visualizer
       private
 
         def partitioned_routes
-          routes.partitioned_routes
+          routes.partition { |r|
+            r.path.anchored && r.ast.grep(Nodes::Symbol).all? { |n| n.default_regexp?  }
+          }
         end
 
         def ast