diff --git a/net/tcpflow/Makefile b/net/tcpflow/Makefile
index 2e6e164a01d3..7594315d77fc 100644
--- a/net/tcpflow/Makefile
+++ b/net/tcpflow/Makefile
@@ -1,35 +1,36 @@
 PORTNAME=	tcpflow
 PORTVERSION=	1.6.1
 PORTREVISION=	1
 CATEGORIES=	net
 MASTER_SITES=	http://downloads.digitalcorpora.org/downloads/${PORTNAME}/
 
 MAINTAINER=	antoine@FreeBSD.org
 COMMENT=	Program that captures data transmitted as part of TCP connections
 WWW=		https://github.com/simsong/tcpflow
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	${LOCALBASE}/include/boost/icl/interval.hpp:devel/boost-libs
 LIB_DEPENDS=	libcairo.so:graphics/cairo \
 		libexpat.so:textproc/expat2 \
 		libfontconfig.so:x11-fonts/fontconfig \
 		libfreetype.so:print/freetype2
 
 USES=		cpe ssl xorg
 USE_XORG=	pixman
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
 CONFIGURE_ENV=	ac_cv_lib_md_MD5=no \
 		ac_cv_header_tre_tre_h=no ac_cv_lib_tre_tre_regcomp=no \
 		ac_cv_header_sqlite3_h=no ac_cv_lib_sqlite3_sqlite3_libversion=no \
 		ac_cv_header_python2_7_Python_h=no ac_cv_lib_python2_7_Py_Initialize=no
+CFLAGS_powerpc=	-O0
 CPPFLAGS+=	-I${LOCALBASE}/include
 LIBS+=		-L${LOCALBASE}/lib
 
 CPE_VENDOR=	digitalcorpora
 
 PLIST_FILES=	bin/tcpflow share/man/man1/tcpflow.1.gz
 
 .include <bsd.port.mk>