diff --git a/spec/lib/waterdrop/errors_spec.rb b/spec/lib/waterdrop/errors_spec.rb
index c40a0c7..e49b618 100644
--- a/spec/lib/waterdrop/errors_spec.rb
+++ b/spec/lib/waterdrop/errors_spec.rb
@@ -43,6 +43,12 @@
     specify { expect(error).to be < described_class::BaseError }
   end
 
+  describe 'ProducerTransactionalCloseAttemptError' do
+    subject(:error) { described_class::ProducerTransactionalCloseAttemptError }
+
+    specify { expect(error).to be < described_class::BaseError }
+  end
+
   describe 'MessageInvalidError' do
     subject(:error) { described_class::MessageInvalidError }