diff --git a/docker-compose.yml b/docker-compose.yml
index 50a8e4a..8b79994 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -8,7 +8,8 @@ services:
     ports:
       - ${PMA_PORT}:80
     environment:
-      - PMA_ARBITRARY=1
+      - PMA_ARBITRARY=0
+      - PMA_HOST=common-mysql
     networks:
       - web