diff --git a/scripts/upgrade b/scripts/upgrade
index 072a13f..6c319c7 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -28,7 +28,7 @@ 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 -R 775 $data_path
+sudo chmod -R 770 $data_path
 sudo chmod -R 775 $final_path
 
 # Change variables in Owncloud configuration