diff --git a/spec/models/contact_inbox_spec.rb b/spec/models/contact_inbox_spec.rb
index e63dede76..b19d58934 100644
--- a/spec/models/contact_inbox_spec.rb
+++ b/spec/models/contact_inbox_spec.rb
@@ -28,7 +28,7 @@ RSpec.describe ContactInbox do
       obj.reload
 
       # ensure the column is nil in database
-      expect(ContactInbox.where(id: obj.id).pick(:pubsub_token)).to be_nil
+      expect(described_class.where(id: obj.id).pick(:pubsub_token)).to be_nil
 
       new_token = obj.pubsub_token
       obj.update(source_id: '234234323')