diff --git a/scripts/README.md b/scripts/README.md
index 9523e257c..af6a6addd 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -20,6 +20,8 @@ and an own build machine.
 
 - `run_all.sh` builds Python wheels
 
+- `aarch64-unknown-linux-musl.sh` cross-compiles static `deltachat-rpc-server` for aarch64
+
 ## Triggering runs on the build machine locally (fast!)
 
 There is experimental support for triggering a remote Python or Rust test run 
diff --git a/scripts/aarch64-unknown-linux-musl.sh b/scripts/aarch64-unknown-linux-musl.sh
index 4e5ed6f09..272574fce 100755
--- a/scripts/aarch64-unknown-linux-musl.sh
+++ b/scripts/aarch64-unknown-linux-musl.sh
@@ -1,4 +1,6 @@
 #!/bin/sh
+#
+# Build statically linked deltachat-rpc-server for aarch64-unknown-linux-musl.
 
 set -x
 set -e