diff --git a/overrides/compose.mariadb-secrets.yaml b/overrides/compose.mariadb-secrets.yaml
index 3fe8a066..a8172431 100644
--- a/overrides/compose.mariadb-secrets.yaml
+++ b/overrides/compose.mariadb-secrets.yaml
@@ -1,8 +1,8 @@
 services:
   db:
     environment:
-      - MYSQL_ROOT_PASSWORD: !reset null
-      - MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db_password
+      MYSQL_ROOT_PASSWORD: !reset null
+      MYSQL_ROOT_PASSWORD_FILE: /run/secrets/db_password
     healthcheck:
       test: mysqladmin ping -h localhost --password="$(cat /run/secrets/db_password)"
     secrets: