diff --git a/scripts/install b/scripts/install
index 9f3090b..055c420 100644
--- a/scripts/install
+++ b/scripts/install
@@ -70,6 +70,7 @@ ynh_app_setting_set --app=$app --key=language --value=$language
 ynh_script_progression --message="Creating a MySQL database..."
 
 db_name=$(ynh_sanitize_dbid --db_name=$app)
+db_user=$db_name
 ynh_app_setting_set --app=$app --key=db_name --value=$db_name
 ynh_mysql_setup_db --db_user=$db_name --db_name=$db_name