diff --git a/slides/kube/concepts-k8s.md b/slides/kube/concepts-k8s.md
index cd5881d6..bcc9ffb3 100644
--- a/slides/kube/concepts-k8s.md
+++ b/slides/kube/concepts-k8s.md
@@ -221,7 +221,7 @@ Yes!
 
   *Probably not (in the future)*
 
-.footnote[More information about CRI [on the Kubernetes blog](https://kubernetes.io/blog/2016/12/container-runtime-interface-cri-in-kubernetes)
+.footnote[More information about CRI [on the Kubernetes blog](https://kubernetes.io/blog/2016/12/container-runtime-interface-cri-in-kubernetes)]
 
 ---