diff --git a/controllers/nginx/README.md b/controllers/nginx/README.md
index 9a1e3a4fb9..c92a7c5991 100644
--- a/controllers/nginx/README.md
+++ b/controllers/nginx/README.md
@@ -40,7 +40,7 @@ Anytime we reference a tls secret, we mean (x509, pem encoded, RSA 2048, etc). Y
 
 
 ## Requirements
-- Default backend [404-server](https://github.com/kubernetes/contrib/tree/master/404-server)
+- Default backend [404-server](https://github.com/kubernetes/ingress/tree/master/images/404-server)
 
 
 ## Command line arguments
diff --git a/docs/catalog.md b/docs/catalog.md
index 759322a31c..0d1a1a23af 100644
--- a/docs/catalog.md
+++ b/docs/catalog.md
@@ -9,3 +9,4 @@ This is a non-comprehensive list of existing ingress controllers.
 * [AWS Application Load Balancer Ingress Controller](https://github.com/coreos/alb-ingress-controller)
 * [kube-ingress-aws-controller](https://github.com/zalando-incubator/kube-ingress-aws-controller)
 * [Voyager: HAProxy Ingress Controller](https://github.com/appscode/voyager)
+* [External Nginx Ingress Controller](https://github.com/unibet/ext_nginx)
\ No newline at end of file