diff --git a/security/botan/botan.conf b/security/botan/botan.conf
index 0e120d3f7..3f415f8f4 100644
--- a/security/botan/botan.conf
+++ b/security/botan/botan.conf
@@ -13,5 +13,5 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
-hook_add preconf 5 "./configure.py --prefix=/$prefix --libdir=${libdir##*/}"
+hook_add preconf 5 "./configure.py --prefix=/$prefix --libdir=${libdir##*/} --cpu=$arch_machine"
 var_append makeinstopt ' ' "DOCDIR=$docdir"