diff --git a/dozzle/README.md b/dozzle/README.md
new file mode 100644
index 0000000..f32647d
--- /dev/null
+++ b/dozzle/README.md
@@ -0,0 +1,11 @@
+# Create an environment file
+
+```shell
+touch ~/docker/dozzke/.env
+nano ~/docker/dozzle/.env
+```
+
+## Add the following values
+
+`HOSTNAME`=ts-vperanda|ts-io|ts-svr-office
+
diff --git a/dozzle/docker-compose.yml b/dozzle/docker-compose.yml
index 44f3aa1..2b94ab1 100644
--- a/dozzle/docker-compose.yml
+++ b/dozzle/docker-compose.yml
@@ -7,5 +7,5 @@ services:
       - 9999:8080
     environment:
       # DOZZLE_REMOTE_HOST: tcp://ts-vperanda:2375|vperanda,tcp://ts-svr-office:2375
-      DOZZLE_HOSTNAME: ts-io
+      DOZZLE_HOSTNAME: ${HOSTNAME}
     restart: unless-stopped