diff --git a/services/preview/costmanagement/mgmt/2019-03-01/costmanagement/CHANGELOG.md b/services/preview/costmanagement/mgmt/2019-03-01/costmanagement/CHANGELOG.md
deleted file mode 100644
index 4b553421a78a..000000000000
--- a/services/preview/costmanagement/mgmt/2019-03-01/costmanagement/CHANGELOG.md
+++ /dev/null
@@ -1 +0,0 @@
-No changes to exported content compared to the previous release.
diff --git a/services/preview/costmanagement/mgmt/2019-03-01/costmanagement/version.go b/services/preview/costmanagement/mgmt/2019-03-01/costmanagement/version.go
index 00606d41391a..461e5199812c 100644
--- a/services/preview/costmanagement/mgmt/2019-03-01/costmanagement/version.go
+++ b/services/preview/costmanagement/mgmt/2019-03-01/costmanagement/version.go
@@ -19,7 +19,7 @@ package costmanagement
 
 // UserAgent returns the UserAgent string to use when sending http.Requests.
 func UserAgent() string {
-	return "Azure-SDK-For-Go/1.0.0 costmanagement/2019-03-01"
+	return "Azure-SDK-For-Go/1.0.0 costmanagement/2019-03-01-preview"
 }
 
 // Version returns the semantic version (see http://semver.org) of the client.