diff --git a/README.md b/README.md
index 1d48b1dd2..b66820127 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ specified, the package will build for all architectures.
 * `0000 0001` (1) = *the default*, package will be built for all architectures
 * `0000 0010` (2) = the package will be built only for armv5
 * `0000 0100` (4) = the package will be built only for armv7h
-* `0000 1000` (8) = reserved
+* `0000 1000` (8) = the package will be build only for armv8 (AArch64)
 * `0001 0000` (16) = the package will be built only for armv6h
 
 ### highmem