diff --git a/README.md b/README.md
index 9534c3e..feae11f 100644
--- a/README.md
+++ b/README.md
@@ -399,7 +399,7 @@ A standalone Docker environment to play with bazel-zig-cc:
 ```
 $ docker run -e CC=/usr/bin/false -ti --rm -v "$PWD:/x" -w /x debian:bullseye-slim
 # dpkg --add-architecture arm64 && apt update
-# apt install --no-install-recommends -y direnv git shellcheck ca-certificates libc6:arm64
+# apt install --no-install-recommends -y direnv git shellcheck ca-certificates libc6:arm64 qemu-user-static
 # eval "$(direnv hook bash)" && direnv allow
 # ./ci/test
 # ./ci/lint