diff --git a/modules/domain/main.tf b/modules/domain/main.tf
index 84702aa..308210c 100644
--- a/modules/domain/main.tf
+++ b/modules/domain/main.tf
@@ -125,7 +125,7 @@ resource "aws_iam_server_certificate" "new" {
   count             = local.create_cert
   name_prefix       = "${local.content}-"
   certificate_body  = acme_certificate.new[0].certificate_pem
-  certificate_chain = "${acme_certificate.new[0].certificate_pem}${acme_certificate.new[0].issuer_pem}"
+  certificate_chain = acme_certificate.new[0].issuer_pem
   private_key       = tls_private_key.cert_private_key[0].private_key_pem
   lifecycle {
     create_before_destroy = true