diff --git a/locales/en.json b/locales/en.json
index 481e7c644..a0c805b75 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -311,7 +311,6 @@
     "domain_name_unknown": "Domain '{domain}' unknown",
     "domain_remove_confirm_apps_removal": "Removing this domain will remove those applications:\n{apps}\n\nAre you sure you want to do that? [{answers}]",
     "domain_uninstall_app_first": "Those applications are still installed on your domain:\n{apps}\n\nPlease uninstall them using 'yunohost app remove the_app_id' or move them to another domain using 'yunohost app change-url the_app_id' before proceeding to domain removal",
-    "domain_unknown": "Unknown domain",
     "domains_available": "Available domains:",
     "done": "Done",
     "downloading": "Downloading...",
diff --git a/src/yunohost/utils/config.py b/src/yunohost/utils/config.py
index 429606dfe..9701bf966 100644
--- a/src/yunohost/utils/config.py
+++ b/src/yunohost/utils/config.py
@@ -681,7 +681,7 @@ class DomainQuestion(Question):
 
     def _raise_invalid_answer(self):
         raise YunohostValidationError(
-            "app_argument_invalid", name=self.name, error=m18n.n("domain_unknown")
+            "app_argument_invalid", name=self.name, error=m18n.n("domain_name_unknown", domain=self.value)
         )