diff --git a/script/sql/create/20.mixing.sql b/script/sql/create/20.mixing.sql
index afdb3bf..2575915 100644
--- a/script/sql/create/20.mixing.sql
+++ b/script/sql/create/20.mixing.sql
@@ -1,6 +1,6 @@
 -- [MIXING]
 
-create type mixing_model as enum ('mixed', '2comp', 'fifo', 'lifo');
+create type mixing_model as enum ('MIXED', '2COMP', 'FIFO', 'LIFO');
 
 create table mixing
 (