diff --git a/docs/spec/channel.md b/docs/spec/channel.md
index 5a6a4f5b4c5..6d389a6a8df 100644
--- a/docs/spec/channel.md
+++ b/docs/spec/channel.md
@@ -150,7 +150,7 @@ Each channel is _namespaced_ and MUST have the following:
 
 Each instantiated Channel (ie, Custom Object) SHOULD have an annotation
 indicating which version of the `Channelable` duck type it conforms to. We
-currently have two versions:
+currently have these versions:
 
 1. [v1alpha1](https://github.com/knative/eventing/blob/master/pkg/apis/duck/v1alpha1/channelable_types.go)
 1. [v1beta1](https://github.com/knative/eventing/blob/master/pkg/apis/duck/v1beta1/channelable_types.go)