diff --git a/blueprints/supabase/template.yml b/blueprints/supabase/template.yml
index c1c932c..0910d4e 100644
--- a/blueprints/supabase/template.yml
+++ b/blueprints/supabase/template.yml
@@ -325,7 +325,7 @@ config:
     - filePath: /volumes/db/roles.sql
       content: |
         -- NOTE: change to your own passwords for production environments
-        \set pgpass '$(echo "$POSTGRES_PASSWORD")'
+        \\set pgpass \`echo "$POSTGRES_PASSWORD"\`
 
         ALTER USER authenticator WITH PASSWORD :'pgpass';
         ALTER USER pgbouncer WITH PASSWORD :'pgpass';