diff --git a/actionpack/lib/action_view/asset_paths.rb b/actionpack/lib/action_view/asset_paths.rb
index 73f4f8ee5f538ce2a116e5aeb38ea9552caef127..1d968fc798b0e5beaee2bcee87e3ed5ebc725531 100644
--- a/actionpack/lib/action_view/asset_paths.rb
+++ b/actionpack/lib/action_view/asset_paths.rb
@@ -121,7 +121,6 @@ def compute_asset_host(source)
     def relative_url_root
       config = controller.config if controller.respond_to?(:config)
       config ||= config.action_controller if config.action_controller.present?
-      config ||= config
       config.relative_url_root
     end