diff --git a/roles/matrix-bridge-mautrix-facebook/defaults/main.yml b/roles/matrix-bridge-mautrix-facebook/defaults/main.yml
index f781ba91..1b53a416 100644
--- a/roles/matrix-bridge-mautrix-facebook/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-facebook/defaults/main.yml
@@ -33,6 +33,9 @@ matrix_mautrix_facebook_systemd_wanted_services_list: []
 matrix_mautrix_facebook_appservice_token: ''
 matrix_mautrix_facebook_homeserver_token: ''
 
+# Whether or not created rooms should have federation enabled.
+# If false, created portal rooms will never be federated.
+matrix_mautrix_facebook_federate_rooms: true
 
 # Database-related configuration fields.
 #
diff --git a/roles/matrix-bridge-mautrix-facebook/templates/config.yaml.j2 b/roles/matrix-bridge-mautrix-facebook/templates/config.yaml.j2
index 0b178e43..f04b0cff 100644
--- a/roles/matrix-bridge-mautrix-facebook/templates/config.yaml.j2
+++ b/roles/matrix-bridge-mautrix-facebook/templates/config.yaml.j2
@@ -141,6 +141,9 @@ bridge:
     delivery_receipts: false
     # Whether to allow inviting arbitrary mxids to portal rooms
     allow_invites: false
+    # Whether or not created rooms should have federation enabled.
+    # If false, created portal rooms will never be federated.
+    federate_rooms: {{ matrix_mautrix_facebook_federate_rooms|to_json }}
     # Settings for backfilling messages from Facebook.
     backfill:
         # Whether or not the Facebook users of logged in Matrix users should be