diff --git a/src/yunohost/app.py b/src/yunohost/app.py
index 023007789..f9b7191c0 100644
--- a/src/yunohost/app.py
+++ b/src/yunohost/app.py
@@ -912,7 +912,7 @@ def app_install(operation_logger, auth, app, label=None, args=None, no_remove_on
     # Add path in permission if it's defined in the app install script
     app_settings = _get_app_settings(app_instance_name)
     domain = app_settings['domain']
-    path = app_settings.get('path', '/')
+    path = app_settings.get('path', None)
     if domain and path:
         permission_update(auth, app_instance_name, permission="main", add_url=[domain+path], sync_perm=False)