diff --git a/roundcube.yaml b/roundcube.yaml
index 5982def..8624afa 100755
--- a/roundcube.yaml
+++ b/roundcube.yaml
@@ -17,7 +17,7 @@ services:
       - 9019:80 
     environment:
       - ROUNDCUBEMAIL_DB_TYPE=mysql
-      - ROUNDCUBEMAIL_DB_HOST=mysql-mailcow
+      - ROUNDCUBEMAIL_DB_HOST=mailcow-mysql
       - ROUNDCUBEMAIL_DB_USER=roundcube
       - ROUNDCUBEMAIL_DB_PASSWORD=gr2wfy4gWTfIDjwFILgPuTWH0gDi
       - ROUNDCUBEMAIL_DB_NAME=roundcubemail