}
	if IsSourceBuild() {
		uaAppend("; ", "source")
	}

	uaAppend(" ", Version)
	uaAppend(" ", ReleaseTag)
	uaAppend(" ", CommitID)
	if IsDCOS() {
		universePkgVersion := env.Get("MARATHON_APP_LABEL_DCOS_PACKAGE_VERSION", "")
		// On DC/OS environment try to the get universe package version.
		if universePkgVersion != "" {
			uaAppend(" universe-", universePkgVersion)
		}
	}