diff --git a/lib/ash_money/ash_postgres_extension.ex b/lib/ash_money/ash_postgres_extension.ex
index 4fdf625..b2e9f7e 100644
--- a/lib/ash_money/ash_postgres_extension.ex
+++ b/lib/ash_money/ash_postgres_extension.ex
@@ -13,6 +13,7 @@ if Code.ensure_loaded?(AshPostgres.CustomExtension) do
 
     def install(1) do
       """
+      #{Money.DDL.execute_each(add_money_mult())}
       #{Money.DDL.execute_each(Money.DDL.create_money_with_currency())}
       #{Money.DDL.execute_each(Money.DDL.define_plus_operator())}
       #{Money.DDL.execute_each(Money.DDL.define_minmax_functions())}