diff --git a/enos/enos-scenario-replication.hcl b/enos/enos-scenario-replication.hcl
index d68b83df4..9beb1f291 100644
--- a/enos/enos-scenario-replication.hcl
+++ b/enos/enos-scenario-replication.hcl
@@ -119,7 +119,7 @@ scenario "replication" {
     }
 
     variables {
-      ami_id      = step.create_vpc.ami_ids["ubuntu"][matrix.arch]
+      ami_id      = step.create_vpc.ami_ids["ubuntu"]["amd64"]
       common_tags = local.tags
       consul_release = {
         edition = var.backend_edition
@@ -171,7 +171,7 @@ scenario "replication" {
     }
 
     variables {
-      ami_id      = step.create_vpc.ami_ids["ubuntu"][matrix.arch]
+      ami_id      = step.create_vpc.ami_ids["ubuntu"]["amd64"]
       common_tags = local.tags
       consul_release = {
         edition = var.backend_edition