diff --git a/specification/adp/resource-manager/readme.md b/specification/adp/resource-manager/readme.md
index 743ddf7e0100..64fa366eb591 100644
--- a/specification/adp/resource-manager/readme.md
+++ b/specification/adp/resource-manager/readme.md
@@ -27,6 +27,7 @@ These are the global settings for the adp.
 ```yaml
 title: AdpManagementClient
 openapi-type: arm
+openapi-subtype: rpaas
 tag: package-2020-07-01-preview
 ```
 
diff --git a/specification/azurestackhci/resource-manager/readme.md b/specification/azurestackhci/resource-manager/readme.md
index 64b34d2f9f98..a11a60730b25 100644
--- a/specification/azurestackhci/resource-manager/readme.md
+++ b/specification/azurestackhci/resource-manager/readme.md
@@ -28,6 +28,7 @@ These are the global settings for the azurestackhci.
 title: AzureStackHCIClient
 description: Azure Stack HCI management service
 openapi-type: arm
+openapi-subtype: rpaas
 tag: package-2020-10
 ```
 
diff --git a/specification/datadog/resource-manager/readme.md b/specification/datadog/resource-manager/readme.md
index faa0f77fae95..0f0a9ed07167 100644
--- a/specification/datadog/resource-manager/readme.md
+++ b/specification/datadog/resource-manager/readme.md
@@ -25,6 +25,7 @@ These are the global settings for the Datadog API.
 ``` yaml
 title: Microsoft Datadog Client
 openapi-type: arm
+openapi-subtype: rpaas
 tag: package-2020-02-preview
 ```
 
diff --git a/specification/hybridkubernetes/resource-manager/readme.md b/specification/hybridkubernetes/resource-manager/readme.md
index 67c0b6f1e6a0..f5fa2eeea680 100644
--- a/specification/hybridkubernetes/resource-manager/readme.md
+++ b/specification/hybridkubernetes/resource-manager/readme.md
@@ -27,6 +27,7 @@ These are the global settings for the Kubernetes Connect RP.
 
 ```yaml
 openapi-type: arm
+openapi-subtype: rpaas
 tag: package-2020-01-01-preview
 ```
 
diff --git a/specification/windowsesu/resource-manager/readme.md b/specification/windowsesu/resource-manager/readme.md
index 93e5346c595e..65061a9653e2 100644
--- a/specification/windowsesu/resource-manager/readme.md
+++ b/specification/windowsesu/resource-manager/readme.md
@@ -26,6 +26,7 @@ These are the global settings for the windowsesu.
 
 ```yaml
 openapi-type: arm
+openapi-subtype: rpaas
 tag: package-2019-09-16-preview
 ```