diff --git a/pluie/alpine-mysql/files.tar b/pluie/alpine-mysql/files.tar
index dfcf513..ce84fa1 100644
Binary files a/pluie/alpine-mysql/files.tar and b/pluie/alpine-mysql/files.tar differ
diff --git a/pluie/alpine-mysql/pre-init.d/10-db.sh b/pluie/alpine-mysql/pre-init.d/10-db.sh
index 35f6539..8b143da 100644
--- a/pluie/alpine-mysql/pre-init.d/10-db.sh
+++ b/pluie/alpine-mysql/pre-init.d/10-db.sh
@@ -11,7 +11,7 @@ if [ ! -d /var/lib/mysql/mysql ]; then
     chown -R mysql:mysql /var/lib/mysql
     mysql_install_db --user=mysql > /dev/null
 
-    if [ ! -z "$MYSQL_ROOT_PASSWORD" ]; then
+    if [ -z "$MYSQL_ROOT_PASSWORD" ]; then
         MYSQL_ROOT_PASSWORD=`pwgen -y -s 18 1`
     fi