diff --git a/Manual.md b/Manual.md
index 164bfb1f544..18e53ea6bf6 100644
--- a/Manual.md
+++ b/Manual.md
@@ -356,7 +356,7 @@ as part of the source package.
 set to `<masterdir>/builddir`. The package `wrksrc` is always stored
 in this directory such as `${XBPS_BUILDDIR}/${wrksrc}`.
 
-- `XBPS_MACHINE` The machine architecture as returned by `uname -m`.
+- `XBPS_MACHINE` The machine architecture as returned by `xbps-uhelper arch`.
 
 - `XBPS_SRCDISTDIR` Full path to where the `source distfiles` are stored, i.e `$XBPS_HOSTDIR/sources`.