diff --git a/activitysim/defaults/test/configs/settings.yaml b/activitysim/defaults/test/configs/settings.yaml
index 7a248d1b0..68da70d94 100644
--- a/activitysim/defaults/test/configs/settings.yaml
+++ b/activitysim/defaults/test/configs/settings.yaml
@@ -7,6 +7,8 @@ rural_threshold: 6
 
 households_sample_size: 1000
 
+grade_school_max_age: 14
+
 county_map:
     San Francisco: 1
     San Mateo: 2