diff --git a/spec/dfe/analytics/entities_spec.rb b/spec/dfe/analytics/entities_spec.rb
index 9dcd8669..5009fe84 100644
--- a/spec/dfe/analytics/entities_spec.rb
+++ b/spec/dfe/analytics/entities_spec.rb
@@ -250,6 +250,7 @@
   end
 
   describe 'rollback behavior' do
+    let(:allowlist_fields) { %w[email_address first_name] }
     it 'does not send create event if the transaction is rolled back' do
       ActiveRecord::Base.transaction do
         Candidate.create(id: 123)