diff --git a/server/lib/python/cartodb_services/cartodb_services/tools/redis_tools.py b/server/lib/python/cartodb_services/cartodb_services/tools/redis_tools.py
index 2b77531..7cbc375 100644
--- a/server/lib/python/cartodb_services/cartodb_services/tools/redis_tools.py
+++ b/server/lib/python/cartodb_services/cartodb_services/tools/redis_tools.py
@@ -41,7 +41,7 @@ class RedisDBConfig:
             key)
         conf = self._db_conn.execute(conf_query)[0]['conf']
         if conf is None:
-            raise "There is no redis configuration defined"
+            raise Exception("There is no redis configuration defined")
         else:
             params = json.loads(conf)
             self._host = params['redis_host']