diff --git a/Services/nextcloud/collaboraoffice.container b/Services/nextcloud/collaboraoffice.container
index 40c4e81..ed7dec7 100644
--- a/Services/nextcloud/collaboraoffice.container
+++ b/Services/nextcloud/collaboraoffice.container
@@ -8,7 +8,7 @@ AutoUpdate=registry
 Network=internal.network
 
 Environment=extra_params="--o:ssl.enable=false --o:ssl.termination=true --o:net.proto=IPv4"
-Environment=server_name=[DOMAIN]
+Environment=server_name=office.[DOMAIN]
 Environment=aliasgroup1=https://cloud.[DOMAIN]
 
 PublishPort=9980:9980