diff --git a/models/build/edfi_3/students/bld_ef3__immutable_stu_demos.sql b/models/build/edfi_3/students/bld_ef3__immutable_stu_demos.sql
index 3619f1c1..11cc72f3 100644
--- a/models/build/edfi_3/students/bld_ef3__immutable_stu_demos.sql
+++ b/models/build/edfi_3/students/bld_ef3__immutable_stu_demos.sql
@@ -39,7 +39,7 @@ joined as (
         }} as display_name,
         concat(display_name, ' (', stg_student.student_unique_id, ')') as safe_display_name,
         stg_student.birth_date,
-        stu_demos.gender,
+        coalesce(stu_demos.gender, stg_student.birth_sex) as gender,
         stu_races.race_ethnicity,
         stu_races.race_array,
         stu_races.has_hispanic_latino_ethnicity