diff --git a/server/lib/python/cartodb_services/cartodb_services/refactor/config/rate_limits.py b/server/lib/python/cartodb_services/cartodb_services/refactor/config/rate_limits.py
index 80d92a0..70bde8b 100644
--- a/server/lib/python/cartodb_services/cartodb_services/refactor/config/rate_limits.py
+++ b/server/lib/python/cartodb_services/cartodb_services/refactor/config/rate_limits.py
@@ -1,3 +1,4 @@
+import json
 class RateLimitsConfig(object):
     """
     Value object that represents the configuration needed to rate-limit services