diff --git a/specification/reservations/resource-manager/readme.go.md b/specification/reservations/resource-manager/readme.go.md
index 5083fae1d77..1880b417964 100644
--- a/specification/reservations/resource-manager/readme.go.md
+++ b/specification/reservations/resource-manager/readme.go.md
@@ -13,10 +13,20 @@ go:
 
 ``` yaml $(go) && $(multiapi)
 batch:
+  - tag: package-preview-2019-04
   - tag: package-2018-06
   - tag: package-2017-11
 ```
 
+### Tag: package-preview-2019-04 and go
+
+These settings apply only when `--tag=package-preview-2019-04 --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-preview-2019-04' && $(go)
+output-folder: $(go-sdk-folder)/services/preview/$(namespace)/mgmt/2019-04-01/$(namespace)
+```
+
 ### Tag: package-2018-06 and go
 
 These settings apply only when `--tag=package-2018-06 --go` is specified on the command line.