diff --git a/pkg/reconciler/broker/trigger/trigger.go b/pkg/reconciler/broker/trigger/trigger.go
index d37a3355979..ee5e42d69c0 100644
--- a/pkg/reconciler/broker/trigger/trigger.go
+++ b/pkg/reconciler/broker/trigger/trigger.go
@@ -261,9 +261,9 @@ func (r *Reconciler) subscribeToBrokerChannel(ctx context.Context, b *eventingv1
 		}
 	}
 
-	delivery := t.Spec.Delivery
+	delivery := t.Spec.Delivery.DeepCopy()
 	if delivery == nil {
-		delivery = b.Spec.Delivery
+		delivery = b.Spec.Delivery.DeepCopy()
 	}
 
 	recorder := controller.GetEventRecorder(ctx)