diff --git a/apps-script/preview-link/preview-link.gs b/apps-script/preview-link/preview-link.gs
index 46deadab..fe923494 100644
--- a/apps-script/preview-link/preview-link.gs
+++ b/apps-script/preview-link/preview-link.gs
@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// [START hangouts_chat_preview_link]
 
 /**
  * Responds to messages that have links whose URLs match URL patterns