1 files changed, 10 insertions, 13 deletions
diff --git a/cryptography/hazmat/primitives/ciphers/modes.py b/cryptography/hazmat/primitives/ciphers/modes.py
index e54872a6..1d0de689 100644
--- a/cryptography/hazmat/primitives/ciphers/modes.py
+++ b/cryptography/hazmat/primitives/ciphers/modes.py
@@ -13,49 +13,46 @@
 
 from __future__ import absolute_import, division, print_function
 
+from cryptography import utils
 from cryptography.hazmat.primitives import interfaces
 
 
-@interfaces.register(interfaces.Mode)
-@interfaces.register(interfaces.ModeWithInitializationVector)
+@utils.register_interface(interfaces.Mode)
+@utils.register_interface(interfaces.ModeWithInitializationVector)
 class CBC(object):
     name = "CBC"
 
     def __init__(self, initialization_vector):
-        super(CBC, self).__init__()
         self.initialization_vector = initialization_vector
 
 
-@interfaces.register(interfaces.Mode)
+@utils.register_interface(interfaces.Mode)
 class ECB(object):
     name = "ECB"
 
 
-@interfaces.register(interfaces.Mode)
-@interfaces.register(interfaces.ModeWithInitializationVector)
+@utils.register_interface(interfaces.Mode)
+@utils.register_interface(interfaces.ModeWithInitializationVector)
 class OFB(object):
     name = "OFB"
 
     def __init__(self, initialization_vector):
-        super(OFB, self).__init__()
         self.initialization_vector = initialization_vector
 
 
-@interfaces.register(interfaces.Mode)
-@interfaces.register(interfaces.ModeWithInitializationVector)
+@utils.register_interface(interfaces.Mode)
+@utils.register_interface(interfaces.ModeWithInitializationVector)
 class CFB(object):
     name = "CFB"
 
     def __init__(self, initialization_vector):
-        super(CFB, self).__init__()
         self.initialization_vector = initialization_vector
 
 
-@interfaces.register(interfaces.Mode)
-@interfaces.register(interfaces.ModeWithNonce)
+@utils.register_interface(interfaces.Mode)
+@utils.register_interface(interfaces.ModeWithNonce)
 class CTR(object):
     name = "CTR"
 
     def __init__(self, nonce):
-        super(CTR, self).__init__()
         self.nonce = nonce