diff --git a/config/application.rb b/config/application.rb
index 463f1bc5..33615924 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -34,7 +34,7 @@ class Application < Rails::Application
 
     # Load the tracking server middleware
     require "postal/tracking_middleware"
-    config.middleware.use Postal::TrackingMiddleware
+    config.middleware.insert_before ActionDispatch::HostAuthorization, Postal::TrackingMiddleware
 
     config.logger = Postal.logger_for(:rails)