diff --git a/README.md b/README.md
index 419e0ec..6db4c0d 100644
--- a/README.md
+++ b/README.md
@@ -211,5 +211,5 @@ This project is available under the terms of the ISC license. See the
 [swalschin-example]: https://github.com/swlaschin/Railway-Oriented-Programming-Example
 [ktor]: http://ktor.io/
 [customer-42]: https://github.com/michaelbull/kotlin-result/blob/master/example/src/main/kotlin/com/github/michaelbull/result/example/service/InMemoryCustomerRepository.kt#L38
-[update-customer-error]: https://github.com/michaelbull/kotlin-result/blob/master/example/src/main/kotlin/com/github/michaelbull/result/example/service/CustomerService.kt#L42
+[update-customer-error]: https://github.com/michaelbull/kotlin-result/blob/master/example/src/main/kotlin/com/github/michaelbull/result/example/service/CustomerService.kt#L50
 [github]: https://github.com/michaelbull/kotlin-result