Updated multibackend
diff --git a/cryptography/hazmat/backends/multibackend.py b/cryptography/hazmat/backends/multibackend.py
index 2338568..2d75fd1 100644
--- a/cryptography/hazmat/backends/multibackend.py
+++ b/cryptography/hazmat/backends/multibackend.py
@@ -158,9 +158,9 @@
         raise UnsupportedAlgorithm("DSA is not supported by the backend",
                                    _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM)
 
-    def cmac_supported(self):
+    def cmac_algorithm_supported(self, algorithm):
         for b in self._filtered_backends(CMACBackend):
-            return b.cmac_supported()
+            return b.cmac_algorithm_supported(algorithm)
 
     def create_cmac_ctx(self, algorithm):
         for b in self._filtered_backends(CMACBackend):