diff --git a/devel/kBuild/Makefile b/devel/kBuild/Makefile
index f4521d24a116..4715623a2559 100644
--- a/devel/kBuild/Makefile
+++ b/devel/kBuild/Makefile
@@ -23,7 +23,7 @@ CONFLICTS_INSTALL=	kBuild-devel-[0-9]*
 WRKSRC=		${WRKDIR}/${PORTNAME}-${DISTVERSION}
 
 KBUILD_VERSION=	0.1.9998
-KBUILD_ARCH=	${MACHINE_ARCH:S/i386/x86/}
+KBUILD_ARCH=	${MACHINE_ARCH:S/i386/x86/:S/x86_64/amd64/}
 KBUILD_ENV=	ACLOCAL=${ACLOCAL} \
 		AUTOMAKE=${AUTOMAKE} \
 		AUTORECONF=${AUTORECONF} \