diff --git a/devel/amd64-gcc/Makefile b/devel/amd64-gcc/Makefile
index 22f77a3d9227..7f96dcd813c2 100644
--- a/devel/amd64-gcc/Makefile
+++ b/devel/amd64-gcc/Makefile
@@ -1,12 +1,11 @@
 # $FreeBSD$
 
-PORTREVISION=	1
 PKGNAMEPREFIX=	amd64-
 PLIST=	${.CURDIR}/pkg-plist
 
 MASTERDIR=	${.CURDIR}/../powerpc64-gcc
 GCC_TARGET=	x86_64-unknown-${OPSYS:tl}${OSREL}
-BU_PREFIX=	x86_64-${OPSYS:tl}
+BU_PREFIX=	x86_64-unknown-${OPSYS:tl}${OSREL}
 FREEBSD_EXTENSION=	yes
 
 BROKEN_aarch64=		invalid output constraint '=a' in assembler