diff --git a/appengine/standard/flask/tutorial/appengine_config.py b/appengine/standard/flask/tutorial/appengine_config.py
index c903d9a0ac5..c03915197f7 100644
--- a/appengine/standard/flask/tutorial/appengine_config.py
+++ b/appengine/standard/flask/tutorial/appengine_config.py
@@ -12,7 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# [START vendor]
 from google.appengine.ext import vendor
 
 # Add any libraries installed in the "lib" folder.
 vendor.add('lib')
+# [END vendor]
diff --git a/appengine/standard/flask/tutorial/main.py b/appengine/standard/flask/tutorial/main.py
index 47d56209a2d..feed0fbcf62 100644
--- a/appengine/standard/flask/tutorial/main.py
+++ b/appengine/standard/flask/tutorial/main.py
@@ -19,7 +19,9 @@
 from flask import Flask, render_template, request
 # [END imports]
 
+# [START create_app]
 app = Flask(__name__)
+# [END create_app]
 
 
 # [START form]