diff --git a/cassandra/metadata.py b/cassandra/metadata.py
index 60e1ba6d..aa4900a6 100644
--- a/cassandra/metadata.py
+++ b/cassandra/metadata.py
@@ -343,7 +343,7 @@ class ReplicationStrategy(object):
         elif strategy_class.endswith("LocalStrategy"):
             return LocalStrategy()
 
-    def make_token_replica_map(token_to_host_owner, ring):
+    def make_token_replica_map(self, token_to_host_owner, ring):
         raise NotImplementedError()
 
     def export_for_schema(self):