1 files changed, 3 insertions, 3 deletions
diff --git a/src/cryptography/hazmat/primitives/cmac.py b/src/cryptography/hazmat/primitives/cmac.py
index ccbe07ee..c2038a30 100644
--- a/src/cryptography/hazmat/primitives/cmac.py
+++ b/src/cryptography/hazmat/primitives/cmac.py
@@ -9,7 +9,7 @@ from cryptography.exceptions import (
     AlreadyFinalized, UnsupportedAlgorithm, _Reasons
 )
 from cryptography.hazmat.backends.interfaces import CMACBackend
-from cryptography.hazmat.primitives import interfaces
+from cryptography.hazmat.primitives import ciphers, interfaces
 
 
 @utils.register_interface(interfaces.MACContext)
@@ -21,9 +21,9 @@ class CMAC(object):
                 _Reasons.BACKEND_MISSING_INTERFACE
             )
 
-        if not isinstance(algorithm, interfaces.BlockCipherAlgorithm):
+        if not isinstance(algorithm, ciphers.BlockCipherAlgorithm):
             raise TypeError(
-                "Expected instance of interfaces.BlockCipherAlgorithm."
+                "Expected instance of BlockCipherAlgorithm."
             )
         self._algorithm = algorithm