diff --git a/scripts/upgrade b/scripts/upgrade
index 218a123..42db3c7 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -27,8 +27,9 @@ sudo cp ../conf/mount.json $data_path
 sudo chown -hR owncloud:www-data $final_path
 sudo chown -hR owncloud:www-data $data_path
 sudo chmod 755 /home/yunohost.app
+sudo chmod 664 -R $final_path
+sudo find $final_path -type d -print0 | xargs -0 sudo chmod 775
 sudo chmod -R 770 $data_path
-sudo chmod -R 775 $final_path
 
 # Change variables in Owncloud configuration
 sudo sed -i "s@PATHTOCHANGE@$path@g" /etc/nginx/conf.d/$domain.d/owncloud.conf