diff --git a/docker/Dockerfile b/docker/Dockerfile
index 1a101d5b7..e33b99cfb 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -4,6 +4,7 @@ ARG CARGO_BUILD_FEATURES=default
 ARG RUST_RELEASE_MODE=debug
 
 ARG AMD_BUILDER_IMAGE=rust:${RUST_VERSION}
+# Repo: https://github.com/raskyld/lemmy-cross-toolchains
 ARG ARM_BUILDER_IMAGE="ghcr.io/raskyld/aarch64-lemmy-linux-gnu:v0.2.0"
 
 ARG AMD_RUNNER_IMAGE=debian:bookworm-slim