diff --git a/miio/devicestatus.py b/miio/devicestatus.py
index 4f8118ef8..18bf37f08 100644
--- a/miio/devicestatus.py
+++ b/miio/devicestatus.py
@@ -201,7 +201,11 @@ def decorator_setting(func):
         qualified_name = str(func.__qualname__)
 
         if setter is None and setter_name is None:
-            raise Exception("Either setter or setter_name needs to be defined")
+            raise Exception("setter_name needs to be defined")
+        if setter_name is None:
+            raise NotImplementedError(
+                "setter not yet implemented, use setter_name instead"
+            )
 
         common_values = {
             "id": qualified_name,