diff --git a/mariadb/docker-compose.yml b/mariadb/docker-compose.yml
index c765748..17fb3f4 100644
--- a/mariadb/docker-compose.yml
+++ b/mariadb/docker-compose.yml
@@ -5,6 +5,8 @@ services:
     restart: always
     ports:
       - 3306:3306
+    environment:
+      - MARIADB_ROOT_PASSWORD=${MARIADB_ROOT_PASSWORD}
   adminer:
     image: adminer
     restart: always