diff --git a/blog/content/edition-2/posts/04-testing/index.md b/blog/content/edition-2/posts/04-testing/index.md
index 8cbb5cdc..935e03ac 100644
--- a/blog/content/edition-2/posts/04-testing/index.md
+++ b/blog/content/edition-2/posts/04-testing/index.md
@@ -274,7 +274,7 @@ A simple way to send the data is to use the [serial port], an old interface stan
 The chips implementing a serial interface are called [UARTs]. There are [lots of UART models] on x86, but fortunately the only differences between them are some advanced features we don't need. The common UARTs today are all compatible with the [16550 UART], so we will use that model for our testing framework.
 
 [UARTs]: https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter
-[lots of UART models]: https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter#UART_models
+[lots of UART models]: https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter#Models
 [16550 UART]: https://en.wikipedia.org/wiki/16550_UART
 
 We will use the [`uart_16550`] crate to initialize the UART and send data over the serial port. To add it as a dependency, we update our `Cargo.toml` and `main.rs`: