diff --git a/src/welcome-bare-metal.md b/src/welcome-bare-metal.md
index 69ecc0ac..7781ef27 100644
--- a/src/welcome-bare-metal.md
+++ b/src/welcome-bare-metal.md
@@ -7,10 +7,10 @@ experience with bare-metal programming in some other language such as C.
 Today we will talk about 'bare-metal' Rust: running Rust code without an OS underneath us. This will
 be divided into several parts:
 
- * What is `no_std` Rust?
- * Writing firmware for microcontrollers.
- * Writing bootloader / kernel code for application processors.
- * Some useful crates for bare-metal Rust development.
+- What is `no_std` Rust?
+- Writing firmware for microcontrollers.
+- Writing bootloader / kernel code for application processors.
+- Some useful crates for bare-metal Rust development.
 
 For the microcontroller part of the course we will use the [BBC micro:bit](https://microbit.org/) v2
 as an example. It's a [development board](https://tech.microbit.org/hardware/) based on the Nordic
@@ -23,6 +23,7 @@ To get started, install some tools we'll need later. On gLinux or Debian:
 sudo apt install aarch64-linux-gnu-gcc gdb-multiarch libudev-dev picocom qemu-system-arm
 rustup update
 rustup target add aarch64-unknown-none thumbv7em-none-eabihf
+rustup component add llvm-tools-preview
 cargo install cargo-binutils cargo-embed
 ```
 
@@ -42,5 +43,6 @@ brew install gdb picocom qemu
 brew install --cask gcc-aarch64-embedded
 rustup update
 rustup target add aarch64-unknown-none thumbv7em-none-eabihf
+rustup component add llvm-tools-preview
 cargo install cargo-binutils cargo-embed
 ```