diff --git a/devel/tijmp/Makefile b/devel/tijmp/Makefile
index 9c1839bc0fb7..5dad48f02627 100644
--- a/devel/tijmp/Makefile
+++ b/devel/tijmp/Makefile
@@ -1,36 +1,40 @@
 PORTNAME=	tijmp
 PORTVERSION=	0.8
 CATEGORIES=	devel java
 MASTER_SITES=	https://www.khelekore.org/jmp/tijmp/ \
 		https://www.klop.ws/distfiles/
 
 MAINTAINER=	ronald@FreeBSD.org
 COMMENT=	Tools Interface Java Memory Profiler
 WWW=		https://www.khelekore.org/jmp/tijmp/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		gmake java:build libtool
 JAVA_OS=	native
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	JAVA_HOME="${JAVA_HOME}"
 INSTALL_TARGET=	install-strip
 
 PLIST_FILES=	${JAVAJARDIR}/${PORTNAME}.jar \
 		lib/lib${PORTNAME}.so \
 		lib/lib${PORTNAME}.so.0 \
 		lib/lib${PORTNAME}.so.0.0.1
 PORTDOCS=	ChangeLog README
 
 OPTIONS_DEFINE=	DOCS OPTIMIZED_CFLAGS
 
 OPTIMIZED_CFLAGS_CFLAGS=	-O3
 
 post-patch:
-	@${REINPLACE_CMD} '/^jardir =/s|=.*|= ${JAVAJARDIR}|' ${WRKSRC}/Makefile.in
+	@${REINPLACE_CMD}
+		-e '/^jardir =/s|=.*|= ${JAVAJARDIR}|' \
+		-e 's| -source 1.6 | |' \
+		${WRKSRC}/Makefile.in
 	@${SED} -i "" -e 's|/../share/java|${JAVAJARDIR}|' ${WRKSRC}/src/tijmp.c
 
+
 .include <bsd.port.mk>