diff --git a/specification/eventgrid/resource-manager/readme.md b/specification/eventgrid/resource-manager/readme.md
index 84418c6f3d87..f2b701e81fea 100644
--- a/specification/eventgrid/resource-manager/readme.md
+++ b/specification/eventgrid/resource-manager/readme.md
@@ -26,7 +26,17 @@ These are the global settings for the Azure EventGrid API.
 
 ``` yaml
 openapi-type: arm
-tag: package-2018-01
+tag: package-2018-05-preview
+```
+
+
+### Tag: package-2018-05-preview
+
+These settings apply only when `--tag=package-2018-05-preview` is specified on the command line.
+
+``` yaml $(tag) == 'package-2018-05-preview'
+input-file:
+- Microsoft.EventGrid/preview/2018-05-01-preview/EventGrid.json
 ```
 
 
@@ -136,11 +146,21 @@ go:
 
 ``` yaml $(go) && $(multiapi)
 batch:
+  - tag: package-2018-05-preview
   - tag: package-2018-01
   - tag: package-2017-09-preview
   - tag: package-2017-06-preview
 ```
 
+### Tag: package-2018-05-preview and go
+
+These settings apply only when `--tag=package-2018-05-preview --go` is specified on the command line.
+Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
+
+``` yaml $(tag) == 'package-2018-05-preview' && $(go)
+output-folder: $(go-sdk-folder)/services/eventgrid/mgmt/2018-05-01-preview/eventgrid
+```
+
 ### Tag: package-2018-01 and go
 
 These settings apply only when `--tag=package-2018-01 --go` is specified on the command line.