diff --git a/enos/enos-scenario-e2e-aws-base-with-vault.hcl b/enos/enos-scenario-e2e-aws-base-with-vault.hcl
index a62eea839..21fb6b8ca 100644
--- a/enos/enos-scenario-e2e-aws-base-with-vault.hcl
+++ b/enos/enos-scenario-e2e-aws-base-with-vault.hcl
@@ -36,7 +36,8 @@ scenario "e2e_aws_base_with_vault" {
       instance_type = [
         var.controller_instance_type,
         var.worker_instance_type,
-        var.target_instance_type
+        var.target_instance_type,
+        var.vault_instance_type
       ]
     }
   }
diff --git a/enos/enos-scenario-e2e-aws-rdp-target.hcl b/enos/enos-scenario-e2e-aws-rdp-target.hcl
index 759bebde3..bc7da037d 100644
--- a/enos/enos-scenario-e2e-aws-rdp-target.hcl
+++ b/enos/enos-scenario-e2e-aws-rdp-target.hcl
@@ -27,8 +27,7 @@ scenario "e2e_aws_rdp_target" {
 
     variables {
       instance_type = [
-        var.worker_instance_type,
-        var.controller_instance_type
+        var.windows_instance_type,
       ]
     }
   }
@@ -53,8 +52,9 @@ scenario "e2e_aws_rdp_target" {
     ]
 
     variables {
-      vpc_id         = step.create_base_infra.vpc_id
-      server_version = matrix.rdp_server
+      vpc_id                   = step.create_base_infra.vpc_id
+      server_version           = matrix.rdp_server
+      rdp_target_instance_type = var.windows_instance_type
     }
   }
 
@@ -81,4 +81,4 @@ scenario "e2e_aws_rdp_target" {
   output "rdp_target_ipv6" {
     value = step.create_rdp_server.ipv6
   }
-}
\ No newline at end of file
+}
diff --git a/enos/enos-variables.hcl b/enos/enos-variables.hcl
index 0a02560ad..074a33c0b 100644
--- a/enos/enos-variables.hcl
+++ b/enos/enos-variables.hcl
@@ -264,4 +264,10 @@ variable "gcp_client_email" {
   type        = string
   sensitive   = true
   default     = null
-}
\ No newline at end of file
+}
+
+variable "windows_instance_type" {
+  description = "Instance type for Windows client nodes"
+  type        = string
+  default     = "m7i-flex.xlarge"
+}