diff --git a/aarch64/README b/aarch64/README
index 7d2c1c4..be06e48 100644
--- a/aarch64/README
+++ b/aarch64/README
@@ -29,3 +29,7 @@ cores in an infinite loop.
     cbz x0,master
     b .
 master:
+
+My build_gcc repository has a build_arm64 script that will build a
+gnu based toolchain that can be/was used to build these examples.
+