diff --git a/retail/interactive-tutorials/events/purge-user-events.js b/retail/interactive-tutorials/events/purge-user-events.js
index 1b45962f7e..802e5e038a 100644
--- a/retail/interactive-tutorials/events/purge-user-events.js
+++ b/retail/interactive-tutorials/events/purge-user-events.js
@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// [START retail_purge_user_events]
 
 'use strict';
 
@@ -68,3 +69,4 @@ process.on('unhandledRejection', err => {
 });
 
 main();
+// [END retail_purge_user_events]