diff --git a/src/yunohost/utils/config.py b/src/yunohost/utils/config.py
index e14b50f6f..914612086 100644
--- a/src/yunohost/utils/config.py
+++ b/src/yunohost/utils/config.py
@@ -193,6 +193,7 @@ class ConfigPanel:
     entity_type = "config"
     save_path_tpl = None
     config_path_tpl = "/usr/share/yunohost/other/config_{entity}.toml"
+    save_mode = "full"
 
     @classmethod
     def list(cls):