diff --git a/examples/allowed-memory/README.md b/examples/allowed-memory/README.md
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+This directory contains an example eBPF program for testing memory access with
+helper functions in rbpf.
+
+To recompile the program, make sure to install all of
+[Aya's prerequisites](https://aya-rs.dev/book/start/development/),
+then run from this directory:
+
+```bash
+cargo build --release
+```