diff --git a/specification/appplatform/resource-manager/readme.md b/specification/appplatform/resource-manager/readme.md
index 9f47434420d2..342f04a93a62 100644
--- a/specification/appplatform/resource-manager/readme.md
+++ b/specification/appplatform/resource-manager/readme.md
@@ -57,6 +57,8 @@ directive:
 suppressions:
   - code: LroPostReturn
     reason: start,stop,flushDNSsetting api do not have return body in async operation
+  - code: PostResponseCodes
+    reason: start,stop,flushDNSSetting API do not have return body
 ```