diff --git a/FEDERATION.md b/FEDERATION.md
index a07e007..ae739f8 100644
--- a/FEDERATION.md
+++ b/FEDERATION.md
@@ -876,10 +876,10 @@ The Offer activity looks more-or-less like this:
 , "id":           "https://https://poetry.space/aviva/activities/c8lrd0"
 , "type":         "Offer"
 , "to":
-    [ https://poetry.space/aviva/followers
-    , https://dev.federated.coop/luke/text-adventure
-    , https://dev.federated.coop/luke/text-adventure/team
-    , https://dev.federated.coop/luke/text-adventure/followers
+    [ "https://poetry.space/aviva/followers"
+    , "https://dev.federated.coop/luke/text-adventure"
+    , "https://dev.federated.coop/luke/text-adventure/team"
+    , "https://dev.federated.coop/luke/text-adventure/followers"
     ]
 , "summary":      "<p>Aviva offered a ticket to project text-adventure.</p>"
 , "target":       "https://dev.federated.coop/luke/text-adventure"