diff --git a/modules/app_registration/outputs.tf b/modules/app_registration/outputs.tf
index 784a4c2..4a540f3 100644
--- a/modules/app_registration/outputs.tf
+++ b/modules/app_registration/outputs.tf
@@ -1,3 +1,3 @@
 output "app_registration_secret" {
-  value = azuread_application_password.app_registration_secret[0].value
+  value = var.secret != null ? azuread_application_password.app_registration_secret.value : null
 }
\ No newline at end of file