diff --git a/README.md b/README.md
index 8f7bcfb..e264aa6 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ $ docker run -v /opt/wallabag:/var/www/wallabag/data -p 80:80 wallabag/wallabag
 For using MariaDB or MySQL you have to define some environment variables with the container. Example:
 
 ```
-$ docker run docker run --name wallabag-db -e "MYSQL_ROOT_PASSWORD=my-secret-pw"  -d mariadb
+$ docker run docker run --name wallabag-db -e "MYSQL_ROOT_PASSWORD=my-secret-pw" -d mariadb
 $ docker run --name wallabag --link wallabag-db:wallabag-db -e "MYSQL_ROOT_PASSWORD=my-secret-pw" -e "SYMFONY__ENV__DATABASE_DRIVER=pdo_mysql" -e "SYMFONY__ENV__DATABASE_HOST=wallabag-db" -e "SYMFONY__ENV__DATABASE_PORT=3306" -e "SYMFONY__ENV__DATABASE_NAME=wallabag" -e "SYMFONY__ENV__DATABASE_USER=wallabag" -e "SYMFONY__ENV__DATABASE_PASSWORD=wallapass" -p 80:80 wallabag/wallabag
 ```