diff --git a/src/README.md b/src/README.md
index 58e7e1f..337ac9b 100644
--- a/src/README.md
+++ b/src/README.md
@@ -30,6 +30,11 @@ dns-slave config option or by relating to the designate-bind charm:
     juju deploy designate-bind
     juju add-relation designate designate-bind
 
+For Queens and later, the nameservers config value must be set:
+
+    juju config designate nameservers="ns1.example.com. ns2.example.com."
+
+
 # Bugs
 
 Please report bugs on [Launchpad](https://bugs.launchpad.net/charm-designate/+filebug).
diff --git a/src/config.yaml b/src/config.yaml
index c019e83..49e7d0d 100644
--- a/src/config.yaml
+++ b/src/config.yaml
@@ -26,6 +26,7 @@ options:
       Space delimited list of nameservers. These are the nameservers that have
       been provided to the domain registrar in order to delegate the domain to
       Designate. e.g. "ns1.example.com. ns2.example.com."
+      This config value is required for Queens and later.
   neutron-domain:
     type: string
     default: