diff --git a/actionpack/lib/action_controller/integration.rb b/actionpack/lib/action_controller/integration.rb
index f3175f617d..94125936af 100644
--- a/actionpack/lib/action_controller/integration.rb
+++ b/actionpack/lib/action_controller/integration.rb
@@ -113,7 +113,7 @@ module ActionController
       # performed on the location header.
       def follow_redirect!
         raise "not a redirect! #{@status} #{@status_message}" unless redirect?
-        get(interpret_uri(headers['Location'].first))
+        get(interpret_uri(headers['location'].first))
         status
       end