diff --git a/www/trunk/Makefile b/www/trunk/Makefile
index 7128827754403..7a0bcd8c973a0 100644
--- a/www/trunk/Makefile
+++ b/www/trunk/Makefile
@@ -20,6 +20,8 @@ USES=		cargo
 USE_GITHUB=	yes
 GH_ACCOUNT=	thedodd
 
+CARGO_FEATURES=	${ARCH:S/i386/YES/:C/^[a-z].*//:S/YES/sse sse2/} # add sse sse2 features only on i386
+
 CARGO_CRATES=	addr2line-0.21.0 \
 		adler-1.0.2 \
 		aes-0.8.4 \
@@ -463,6 +465,12 @@ OPENSSLLIB=	/usr/lib
 
 PLIST_FILES=	bin/${PORTNAME}
 
+#.include <bsd.port.pre.mk>
+
+#.if ${ARCH} == amd64
+#CARGO_FEATURES=	${ARCH:S/i386/sse sse2/}
+#.endif
+
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/${PORTNAME}