diff --git a/kvmd/validators/__init__.py b/kvmd/validators/__init__.py
index d66dec56..04861b2c 100644
--- a/kvmd/validators/__init__.py
+++ b/kvmd/validators/__init__.py
@@ -52,7 +52,7 @@ def raise_error(arg: Any, name: str, hide: bool=False) -> NoReturn:
 
 def check_not_none(arg: Any, name: str) -> Any:
     if arg is None:
-        raise ValidatorError(f"Empty argument is not a valid {name}")
+        raise ValidatorError(f"None argument is not a valid {name}")
     return arg