diff --git a/galera/bootstrap/docker-compose.yml b/galera/bootstrap/docker-compose.yml
index dfe2ef5..377718a 100644
--- a/galera/bootstrap/docker-compose.yml
+++ b/galera/bootstrap/docker-compose.yml
@@ -10,4 +10,8 @@ services:
       - MARIADB_PASSWORD=${USER_PASSWORD}
       - MARIADB_ROOT_PASSWORD=${ROOT_PASSWORD}
       - MARIADB_DATABASE=owncloud
+    volumes:
+      mariadb_data:/bitnami/mariadb
     network_mode: host
+volumes:
+  mariadb_data: