diff --git a/controllers/eventsource/resource.go b/controllers/eventsource/resource.go
index 8a328fea16..3a92d4ce22 100644
--- a/controllers/eventsource/resource.go
+++ b/controllers/eventsource/resource.go
@@ -399,8 +399,14 @@ func buildService(args *AdaptorArgs) (*corev1.Service, error) {
 		},
 	}
 
-	svc.ObjectMeta.SetAnnotations(args.EventSource.Spec.Service.Metadata.Annotations)
-	svc.ObjectMeta.SetLabels(args.EventSource.Spec.Service.Metadata.Labels)
+	if args.EventSource.Spec.Service.Metadata != nil {
+		if args.EventSource.Spec.Service.Metadata.Labels != nil {
+			svc.ObjectMeta.SetLabels(args.EventSource.Spec.Service.Metadata.Labels)
+		}
+		if args.EventSource.Spec.Service.Metadata.Annotations != nil {
+			svc.ObjectMeta.SetAnnotations(args.EventSource.Spec.Service.Metadata.Annotations)
+		}
+	}
 
 	if err := controllerscommon.SetObjectMeta(eventSource, svc, v1alpha1.SchemaGroupVersionKind); err != nil {
 		return nil, err