diff --git a/src/yunohost/settings.py b/src/yunohost/settings.py
index 7826b620f..9b12647a6 100644
--- a/src/yunohost/settings.py
+++ b/src/yunohost/settings.py
@@ -39,7 +39,7 @@ DEFAULTS = OrderedDict([
     ("security.password.admin.strength", {"type": "int", "default": 1}),
     ("security.password.user.strength", {"type": "int", "default": 1}),
     ("service.ssh.allow_deprecated_dsa_hostkey", {"type": "bool", "default": False}),
-    ("security.ciphers.compatibility", {"type": "string", "default": "intermediate"}),
+    ("security.ciphers.compatibility", {"type": "enum", "choices": "intermediate", "modern"}),
 ])