diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d33d0f5d2..0bca26122 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,6 +15,8 @@ jobs:
           - { target: x86_64-pc-windows-gnu, os: windows-latest }
           - { target: x86_64-unknown-linux-musl, os: ubuntu-20.04, use-cross: true }
           # FIXME: these jobs are falling back to x86-64, so they're not testing anything.
+          #
+          # See also https://github.com/cross-rs/cross-toolchains#apple-targets
           # - { target: aarch64-unknown-linux-gnu, os: ubuntu-20.04, use-cross: true }
           # - { target: aarch64-apple-darwin, os: macos-latest, use-cross: true }
     env: