diff --git a/satella/coding/typecheck.py b/satella/coding/typecheck.py
index f3d89e58f33c7f645ea97c918e8a8a62fb071a71..6db2e52cc124b17b88065e8b2b492788e0afcfb5 100644
--- a/satella/coding/typecheck.py
+++ b/satella/coding/typecheck.py
@@ -265,6 +265,7 @@ def typed(*t_args, **t_kwargs):
     :param t_args:
     :param t_kwargs:
     """
+
     t_args = [(__typeinfo_to_tuple_of_types(x) if x is not None else None) for x in t_args]
 
     t_retarg = t_kwargs.get('returns', None)
diff --git a/tests/test_coding/test_debug.py b/tests/test_coding/test_debug.py
index 486d0cad4a9fa5ccc408de22067bcd9a03868f30..26d678c9b1b2b8ee58f6427a28e97bb6a0f2d4dc 100644
--- a/tests/test_coding/test_debug.py
+++ b/tests/test_coding/test_debug.py
@@ -6,6 +6,25 @@ from satella.coding import typed, CallSignature
 
 
 class TestTypecheck(unittest.TestCase):
+    def test_cls(self):
+        # if we don't care about apps
+        class Lol(object):
+            @typed(returns=int)
+            def zomg(self, a):
+                return a
+
+        Lol().zomg(2)
+        self.assertRaises(TypeError, lambda: Lol().zomg('a'))
+
+    def test_cls_test(self):
+
+        class Lol(object):
+            # this should fail, since the first argument the decorator gets is "self", because decorators always get FUNCTION objects!
+            @typed(int, returns=int)
+            def zomg(self, a):
+                return a
+
+        self.assertRaises(TypeError, lambda: Lol().zomg(2))
 
     def test_ta(self):