diff --git a/main.tf b/main.tf
index 634622f..ef9956a 100755
--- a/main.tf
+++ b/main.tf
@@ -2,7 +2,7 @@ locals {
   enabled = coalesce(var.enabled, module.this.enabled, true)
   name    = coalesce(var.name, module.this.name, "idp-${random_string.cognito_userpool_random_suffix.result}")
 
-  sms_role_arn         = coalesce(var.sms_config.sns_caller_arn, aws_iam_role.sms.arn)
+  sms_role_arn         = coalesce(var.sms_config.sns_caller_arn, aws_iam_role.sms[0].arn)
   sms_role_external_id = coalesce(var.sms_config.external_id, random_uuid.sms_role_external_id.result)
 }