diff --git a/docs/dagster-university/pages/dagster-essentials/lesson-8/creating-a-schedule-with-a-date-based-partition.md b/docs/dagster-university/pages/dagster-essentials/lesson-8/creating-a-schedule-with-a-date-based-partition.md
index a6327cb6ad954..2b03c5f9c877a 100644
--- a/docs/dagster-university/pages/dagster-essentials/lesson-8/creating-a-schedule-with-a-date-based-partition.md
+++ b/docs/dagster-university/pages/dagster-essentials/lesson-8/creating-a-schedule-with-a-date-based-partition.md
@@ -13,6 +13,8 @@ Now that you’ve partitioned the relevant assets, the schedule can be changed t
 Currently, `trip_update_job` in `jobs/__init__.py` should look like this:
 
 ```python
+trips_by_week = AssetSelection.keys("trips_by_week")
+
 trip_update_job = define_asset_job(
     name="trip_update_job",
     selection=AssetSelection.all() - AssetSelection.assets(["trips_by_week"]),
@@ -39,6 +41,8 @@ The job should now look like this:
 from dagster import define_asset_job, AssetSelection, AssetKey
 from ..partitions import monthly_partition
 
+trips_by_week = AssetSelection.keys("trips_by_week")
+
 trip_update_job = define_asset_job(
     name="trip_update_job",
     partitions_def=monthly_partition, # partitions added here