diff --git a/redash/query_runner/cass.py b/redash/query_runner/cass.py
index 81e2d6865b..a503f6a9b6 100644
--- a/redash/query_runner/cass.py
+++ b/redash/query_runner/cass.py
@@ -72,7 +72,7 @@ def run_query(self, query, user):
                 connection = Cluster([self.configuration.get('host', '')])
 
             session = connection.connect()
-            session.set_keyspace('{}'.format(self.configuration['keyspace']))
+            session.set_keyspace(self.configuration['keyspace'])
             logger.debug("Cassandra running query: %s", query)
             result = session.execute(query)