diff --git a/docker-compose.yml b/docker-compose.yml
index 906ec53..9e199f4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -63,7 +63,7 @@ services:
   # Primary mailserver instance
   mailserver:
     <<: *mailserver-service
-  hostname: mail
+    hostname: mail
     image: mailserver/docker-mailserver:latest
     container_name: dms
     profiles:
@@ -73,7 +73,7 @@ services:
 
   mailserver:
     <<: *mailserver-service
-  hostname: imap
+    hostname: imap
     image: mailserver/docker-mailserver:latest
     container_name: dms
     profiles:
@@ -83,7 +83,7 @@ services:
       
   mailserver:
     <<: *mailserver-service
-  hostname: smtp
+    hostname: smtp
     image: mailserver/docker-mailserver:latest
     container_name: dms
     profiles: