diff --git a/bundles/redis/metadata.py b/bundles/redis/metadata.py
index dc0f23b..db31a84 100644
--- a/bundles/redis/metadata.py
+++ b/bundles/redis/metadata.py
@@ -59,7 +59,7 @@ def firewall(metadata):
     return {
         'firewall': {
             'port_rules': {
-                '6379/tcp': atomic(metadata.get('redis/restrict-to', {'*'})),
+                '6379/tcp': atomic(metadata.get('redis/restrict-to', set())),
             },
         },
     }