diff --git a/terraform/modules/spack_aws_k8s/opensearch.tf b/terraform/modules/spack_aws_k8s/opensearch.tf
index 4ed496908..9972fbd7b 100644
--- a/terraform/modules/spack_aws_k8s/opensearch.tf
+++ b/terraform/modules/spack_aws_k8s/opensearch.tf
@@ -10,7 +10,7 @@ resource "random_password" "opensearch_password" {
 }
 
 resource "aws_opensearch_domain" "spack" {
-  domain_name = "spack${local.suffix}"
+  domain_name = "spack${var.deployment_name == "prod" ? "" : "-${var.deployment_name}"}"
 
   engine_version = "OpenSearch_1.3"