diff --git a/docs/howto-build-aosp-riscv.md b/docs/howto-build-aosp-riscv.md
index 2240c2ebc2a19aa2d3a6ff712f90f168c9ae06c1..3391c71cf41a63ede6d6e8a476669a68cde6d29b 100644
--- a/docs/howto-build-aosp-riscv.md
+++ b/docs/howto-build-aosp-riscv.md
@@ -90,7 +90,7 @@ $ lunch aosp_riscv64-eng
 $ m --skip-ninja
 ```
 
-# 6. Build Clang
+# 6. Build Clang/llvm toolchain
 
 ```
 $ mkdir llvm-toolchain && cd llvm-toolchain
@@ -98,3 +98,12 @@ $ repo init -u git@github.com:aosp-riscv/platform_manifest.git -b riscv64-llvm-m
 $ repo sync -c
 $ python toolchain/llvm_android/build.py
 ```
+
+# 7. Build Rust toolchain
+
+```
+$ mkdir rust-toolchain && cd rust-toolchain
+$ repo init -u git@github.com:riscv-android-src/manifest.git -b riscv64-android12-rust-toolchain-dev
+$ repo sync -c
+$ python toolchain-android_rust/build.py
+