diff --git a/sentry-rails/spec/spec_helper.rb b/sentry-rails/spec/spec_helper.rb
index d19f9257a..7c9bb9a95 100644
--- a/sentry-rails/spec/spec_helper.rb
+++ b/sentry-rails/spec/spec_helper.rb
@@ -42,6 +42,7 @@
 
   config.after :each do
     Sentry::Rails::Tracing.unsubscribe_tracing_events
+    expect(Sentry::Rails::Tracing.subscribed_tracing_events).to be_empty
     Sentry::Rails::Tracing.remove_active_support_notifications_patch
   end