diff --git a/src/docs/user/configuration/configuring_outbound_email.diviner b/src/docs/user/configuration/configuring_outbound_email.diviner
--- a/src/docs/user/configuration/configuring_outbound_email.diviner
+++ b/src/docs/user/configuration/configuring_outbound_email.diviner
@@ -133,7 +133,7 @@
 Then set the value like this:
 
 ```
-phabricator/ $ ./bin/config set --stdin < mailers.json
+phabricator/ $ ./bin/config set --stdin cluster.mailers < mailers.json
 ```
 
 For alternatives and more information on configuration, see