diff --git a/backend/src/db.js b/backend/src/db.js
index 1210391..a80ef28 100644
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -94,4 +94,8 @@ const cols = db.prepare("PRAGMA table_info(calculations)").all().map(r => r.name
 if (!cols.includes('image'))     db.exec("ALTER TABLE calculations ADD COLUMN image TEXT");
 if (!cols.includes('bemerkung')) db.exec("ALTER TABLE calculations ADD COLUMN bemerkung TEXT NOT NULL DEFAULT ''");
 
+// Migrationen order_items
+const oiCols = db.prepare("PRAGMA table_info(order_items)").all().map(r => r.name);
+if (!oiCols.includes('custom_price')) db.exec("ALTER TABLE order_items ADD COLUMN custom_price REAL");
+if (!oiCols.includes('status'))       db.exec("ALTER TABLE order_items ADD COLUMN status TEXT NOT NULL DEFAULT 'warteliste'");
 module.exports = db;