diff --git a/backend/migrations/040_fixes.sql b/backend/migrations/040_fixes.sql
index 64ba10b..73898db 100644
--- a/backend/migrations/040_fixes.sql
+++ b/backend/migrations/040_fixes.sql
@@ -14,7 +14,16 @@ CREATE UNIQUE INDEX IF NOT EXISTS uq_chat_rooms_general_per_hotel
   ON chat_rooms (hotel_id)
   WHERE type = 'general';
 
--- Fix 2: normalize loyalty_tier values that don't match our 4 tiers
+-- Fix 2: replace 'standard' tier with 'bronze' (the UI uses bronze/silver/gold/platinum)
+-- Drop the old check constraint that only allows 'standard' instead of 'bronze'
+ALTER TABLE guests DROP CONSTRAINT IF EXISTS guests_loyalty_tier_check;
+
+-- Add the correct constraint
+ALTER TABLE guests
+  ADD CONSTRAINT guests_loyalty_tier_check
+  CHECK (loyalty_tier IN ('bronze', 'silver', 'gold', 'platinum'));
+
+-- Migrate existing 'standard' rows to 'bronze'
 UPDATE guests
 SET loyalty_tier = 'bronze'
 WHERE loyalty_tier NOT IN ('bronze', 'silver', 'gold', 'platinum');