diff --git a/zabbixserver/README.md b/zabbixserver/README.md
index 7b3fd61..8429c53 100644
--- a/zabbixserver/README.md
+++ b/zabbixserver/README.md
@@ -181,10 +181,10 @@ git -C '/opt/git/github.com/zabbix/zabbix-docker/branches/latest' checkout 'tags
 
 ## Apply patch
 
-Identify yourself to the local `zabbix-docker` repo
+Identify yourself to the local `zabbix-docker` repo. Obviously substitute your own name. An e-mail address is optional here. You don't want to contribute upstream, you just want to locally apply a patch file.
 ```
 git -C '/opt/git/github.com/zabbix/zabbix-docker/branches/latest' config user.name "hygienic-books"
-git -C '/opt/git/github.com/zabbix/zabbix-docker/branches/latest' config user.email "hygienic-books@tentic.net"
+git -C '/opt/git/github.com/zabbix/zabbix-docker/branches/latest' config user.email ""
 ```
 
 Apply `zabbix-docker.patch` to Docker Compose file. We use Zabbix' `docker-compose_v3_alpine_pgsql_latest.yaml` Compose file. Assuming this repo lives at `/opt/containers/zabbixserver`: