diff --git a/src/yunohost/tools.py b/src/yunohost/tools.py
index 348266ccb..ad0f9b060 100644
--- a/src/yunohost/tools.py
+++ b/src/yunohost/tools.py
@@ -33,7 +33,7 @@ from importlib import import_module
 from moulinette import msignals, m18n
 from moulinette.utils.log import getActionLogger
 from moulinette.utils.process import check_output, call_async_output
-from moulinette.utils.filesystem import write_to_json, read_yaml, write_to_yaml
+from moulinette.utils.filesystem import read_yaml, write_to_yaml
 
 from yunohost.app import _update_apps_catalog, app_info, app_upgrade, _initialize_apps_catalog_system
 from yunohost.domain import domain_add