diff --git a/README.md b/README.md
index d31e421..56b838c 100644
--- a/README.md
+++ b/README.md
@@ -78,13 +78,14 @@ The ecosystem and software Redox OS provides is listed below.
 
 Sometimes things go wrong when compiling. Try the following before opening an issue:
 
+1. Make sure you have a redox toolchain (`x86_64-elf-redox-gcc`).
+    * You can install from .deb packages(`https://static.redox-os.org/toolchain/apt/`) or build [redox-os/libc](https://github.com/redox-os/libc) manually.
 1. Run `rustup update`
-2. Run `make clean`.
-3. Run `git clean -Xfd`.
-4. Make sure you have **the latest version of Rust nightly!** ([rustup.rs](https://www.rustup.rs) is recommended for managing Rust versions. If you already have it, run `rustup`).
-5. Update **GNU Make**, **NASM** and **QEMU/VirtualBox**.
-6. Pull the upstream master branch (`git remote add upstream git@github.com:redox-os/redox.git; git pull upstream master`).
-7. Update submodules (`git submodule update --recursive --init`).
+1. Run `make clean pull`.
+1. Make sure you have **the latest version of Rust nightly!** ([rustup.rs](https://www.rustup.rs) is recommended for managing Rust versions. If you already have it, run `rustup`).
+1. Update **GNU Make**, **NASM** and **QEMU/VirtualBox**.
+1. Pull the upstream master branch (`git remote add upstream git@github.com:redox-os/redox.git; git pull upstream master`).
+1. Update submodules (`git submodule update --recursive --init`).
 
 and then rebuild!