diff --git a/test/conformance/helpers/channel.go b/test/conformance/helpers/channel.go
index 0750fae6c3b..acc839fae7b 100644
--- a/test/conformance/helpers/channel.go
+++ b/test/conformance/helpers/channel.go
@@ -26,13 +26,10 @@ import (
 	eventingduckv1alpha1 "knative.dev/eventing/pkg/apis/duck/v1alpha1"
 	eventingduckv1beta1 "knative.dev/eventing/pkg/apis/duck/v1beta1"
 
+	"knative.dev/eventing/pkg/apis/messaging"
 	messagingv1beta1 "knative.dev/eventing/pkg/apis/messaging/v1beta1"
 )
 
-const (
-	SubscribableAnnotationKey = "messaging.knative.dev/subscribable"
-)
-
 var (
 	channelv1beta1GVK = (&messagingv1beta1.Channel{}).GetGroupVersionKind()
 
@@ -52,7 +49,7 @@ func getChannelDuckTypeSupportVersion(channelName string, client *lib.Client, ch
 	if !ok {
 		return "", errors.Wrapf(err, "Unable to cast the channel %v", metaResource)
 	}
-	return channelable.ObjectMeta.Annotations[SubscribableAnnotationKey], nil
+	return channelable.ObjectMeta.Annotations[messaging.SubscribableDuckVersionAnnotation], nil
 }
 
 func getChannelAsV1Beta1Channelable(channelName string, client *lib.Client, channel metav1.TypeMeta) (*eventingduckv1beta1.Channelable, error) {