diff --git a/retail/interactive-tutorials/product/set-inventory.js b/retail/interactive-tutorials/product/set-inventory.js
index bc6df2c06f..16a4a6264d 100644
--- a/retail/interactive-tutorials/product/set-inventory.js
+++ b/retail/interactive-tutorials/product/set-inventory.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_set_inventory]
 
 'use strict';
 
@@ -99,3 +100,4 @@ process.on('unhandledRejection', err => {
 });
 
 main(...process.argv.slice(2));
+// [END retail_set_inventory]