diff --git a/group_vars/kubelet.yml b/group_vars/kubelet.yml
index d3a3ef3..c65a79c 100644
--- a/group_vars/kubelet.yml
+++ b/group_vars/kubelet.yml
@@ -18,6 +18,6 @@ container_registries:
   prefix: docker.io
 
 container_registry_certs:
-  docker-hub.proxy.pyrocufflink.blue:443:
+  docker-hub.proxy.pyrocufflink.blue:
     ca: >-
       {{ lookup('file', 'dch-root-ca-r2.crt') }}