diff --git a/example/docker-compose.yml b/example/docker-compose.yml
index 6741d8e..3b5a544 100644
--- a/example/docker-compose.yml
+++ b/example/docker-compose.yml
@@ -6,6 +6,8 @@ services:
     environment:
       MYSQL_DATABASE: ninja
       MYSQL_ROOT_PASSWORD: pwd
+    volumes:
+      - ./var/mysql:/var/lib/mysql
 
   app:
     image: invoiceninja/invoiceninja