diff --git a/pipeline/transform/models/marts/dim_school.sql b/pipeline/transform/models/marts/dim_school.sql
index 014acbe..c2fc641 100644
--- a/pipeline/transform/models/marts/dim_school.sql
+++ b/pipeline/transform/models/marts/dim_school.sql
@@ -15,7 +15,7 @@ select
     s.local_authority_code * 1000 + s.establishment_number as laestab,
     s.school_name,
     case
-        when s.phase is not null and s.phase != 'Not applicable' then s.phase
+        when s.phase is not null and lower(s.phase) != 'not applicable' then s.phase
         when s.statutory_high_age is not null and s.statutory_high_age <= 11 then 'Primary'
         when s.statutory_low_age is not null and s.statutory_low_age >= 11 then 'Secondary'
         when s.statutory_low_age is not null and s.statutory_high_age is not null