diff --git a/lib/generators/authentication/templates/config/initializers/webauthn.rb b/lib/generators/authentication/templates/config/initializers/webauthn.rb
index 14881035..f997d171 100644
--- a/lib/generators/authentication/templates/config/initializers/webauthn.rb
+++ b/lib/generators/authentication/templates/config/initializers/webauthn.rb
@@ -1,4 +1,4 @@
 WebAuthn.configure do |config|
-  config.origin  = "http://localhost:3000"
+  config.allowed_origins = ["http://localhost:3000"]
   config.rp_name = "Example Inc."
 end