diff --git a/roles/matrix-bridge-mautrix-signal/defaults/main.yml b/roles/matrix-bridge-mautrix-signal/defaults/main.yml
index e6c5fe05..5d6bb7d3 100644
--- a/roles/matrix-bridge-mautrix-signal/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-signal/defaults/main.yml
@@ -69,7 +69,7 @@ matrix_mautrix_signal_configuration_yaml: "{{ lookup('template', 'templates/conf
 #        * - All Matrix users
 #   domain - All users on that homeserver
 #     mxid - Specific user
-matrix_mautrix_signal_configuration_permissions: []
+matrix_mautrix_signal_configuration_permissions: {}
 
 matrix_mautrix_signal_configuration_extension_yaml: |
   # Your custom YAML configuration goes here.