diff --git a/roles/ipsilon/files/infofas.py b/roles/ipsilon/files/infofas.py
index 6d119e19d9..c1590a426c 100644
--- a/roles/ipsilon/files/infofas.py
+++ b/roles/ipsilon/files/infofas.py
@@ -42,7 +42,8 @@ aws_groups = {
     'aws-master': 'arn:aws:iam::125523088429:role/aws-master',
     'aws-iam': 'arn:aws:iam::125523088429:role/aws-iam',
     'aws-billing': 'arn:aws:iam::125523088429:role/aws-billing',
-    'aws-atomic': 'arn:aws:iam::125523088429:role/aws-atomic'
+    'aws-atomic': 'arn:aws:iam::125523088429:role/aws-atomic',
+    'aws-s3-readonly': 'arn:aws:iam::125523088429:role/aws-s3-readonly'
 }