diff --git a/spec/lib/gitlab/request_context_spec.rb b/spec/lib/gitlab/request_context_spec.rb
index 3ed57c2c9166f559f73529bfbafce55ef0062dd4..23e45aff1c59aec65d7dbb6a4576cf085a4df12f 100644
--- a/spec/lib/gitlab/request_context_spec.rb
+++ b/spec/lib/gitlab/request_context_spec.rb
@@ -25,7 +25,7 @@
           [200, {}, ["Hello"]]
         end
 
-        Rails.application.middleware.build(endpoint).call(env)
+        described_class.new(endpoint).call(env)
 
         expect(client_ip).to eq(load_balancer_ip)
       end