diff --git a/multimedia/obs-ndi/Makefile b/multimedia/obs-ndi/Makefile
index 9607ca05c106..97304ff52748 100644
--- a/multimedia/obs-ndi/Makefile
+++ b/multimedia/obs-ndi/Makefile
@@ -1,18 +1,19 @@
 PORTNAME=	obs-ndi
 DISTVERSION=	4.9.1
+PORTREVISION=	1
 CATEGORIES=	multimedia
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	OBS Studio Plugin: Network Device Interface
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libobs.so:multimedia/obs-studio
 
 USES=		cmake compiler:c++11-lang localbase:ldflags qt:5
 USE_GITHUB=	yes
 GH_ACCOUNT=	Palakis
 USE_QT=		core gui widgets buildtools_build qmake_build
 
 .include <bsd.port.mk>
diff --git a/multimedia/obs-ndi/files/patch-CMakeLists.txt b/multimedia/obs-ndi/files/patch-CMakeLists.txt
new file mode 100644
index 000000000000..94113e823907
--- /dev/null
+++ b/multimedia/obs-ndi/files/patch-CMakeLists.txt
@@ -0,0 +1,11 @@
+--- CMakeLists.txt.orig	2020-05-14 10:29:22 UTC
++++ CMakeLists.txt
+@@ -153,7 +153,7 @@ endif()
+ if(UNIX AND NOT APPLE)
+ 	include(GNUInstallDirs)
+ 
+-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -mtune=core2 -Ofast")
++	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Ofast")
+ 
+ 	set_target_properties(obs-ndi PROPERTIES PREFIX "")
+ 	target_link_libraries(obs-ndi obs-frontend-api)