diff --git a/templates/opt/matrix/config/homeserver.yml.j2 b/templates/opt/matrix/config/homeserver.yml.j2
index b39b14e..c7d404b 100644
--- a/templates/opt/matrix/config/homeserver.yml.j2
+++ b/templates/opt/matrix/config/homeserver.yml.j2
@@ -45,7 +45,7 @@ block_non_admin_invites: false
 enable_search: true
 
 # Restrict federation to the following whitelist of domains.
-federation_domain_whitelist: []
+# federation_domain_whitelist: []
 
 federation_ip_range_blacklist:
   - "127.0.0.0/8"
@@ -274,7 +274,7 @@ url_preview_ip_range_blacklist:
 
 # List of IP address CIDR ranges that the URL preview spider is allowed
 # to access even if they are specified in url_preview_ip_range_blacklist.
-url_preview_ip_range_whitelist: []
+# url_preview_ip_range_whitelist: []
 
 # Optional list of URL matches that the URL preview spider is
 # denied from accessing.