diff --git a/src/routes/api/v1/products_schema.ts b/src/routes/api/v1/products_schema.ts
index 2ffa16e..9fcfee8 100644
--- a/src/routes/api/v1/products_schema.ts
+++ b/src/routes/api/v1/products_schema.ts
@@ -47,7 +47,7 @@ const schema_post = validator.object({
 // MARK: UPDATE products
 const schema_patch = validator
 	.object({
-		id: validator.number().positive().precision(0),
+		id: validator.number().positive().precision(0).required(),
 		gtin: validator
 			.string()
 			.min(8)