diff --git a/games/gzdoom/Makefile b/games/gzdoom/Makefile
index bd7b23c72993..125329bf8d9e 100644
--- a/games/gzdoom/Makefile
+++ b/games/gzdoom/Makefile
@@ -1,47 +1,47 @@
 PORTNAME=	gzdoom
 PORTVERSION=	4.7.1
-PORTREVISION=	1
+PORTREVISION=	2
 DISTVERSIONPREFIX=	g
 CATEGORIES=	games
 
 MAINTAINER=	kevans@FreeBSD.org
 COMMENT=	GL-enhanced source port for Doom-engine games
 WWW=		https://zdoom.org/
 
 LICENSE=	BSD3CLAUSE GPLv3 LGPL3
 LICENSE_COMB=	multi
 LICENSE_FILE_BSD3CLAUSE=${WRKSRC}/docs/licenses/bsd.txt
 LICENSE_FILE_GPLv3=	${WRKSRC}/docs/licenses/gpl.txt
 LICENSE_FILE_LGPL3=	${WRKSRC}/docs/licenses/lgpl.txt
 
 BUILD_DEPENDS=	zip:archivers/zip
 LIB_DEPENDS=	libfontconfig.so:x11-fonts/fontconfig \
 		libfreetype.so:print/freetype2 \
 		libzmusic.so:audio/zmusic
 
 USES=		cmake compiler:c++11-lang gl gnome jpeg pkgconfig sdl
 
 DATADIR=	${DMDIR}/${PORTNAME}
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	coelckers
 
 CMAKE_ARGS=	-DINSTALL_DOCS_PATH=${DOCSDIR}	\
 		-DINSTALL_PK3_PATH=${DMDIR}	\
 		-DINSTALL_SOUNDFONT_PATH=${DMDIR}
 
 USE_GNOME=	atk cairo gdkpixbuf2 gtk20 pango
 USE_SDL=	sdl2
 USE_GL=		gl glu
 CXXFLAGS+=	-DSHARE_DIR=\\\"${DATADIR}\\\"
 LDFLAGS+=	-Wl,--as-needed
 
 DESKTOP_ENTRIES=	"GZDoom" "" "${PORTNAME}" "${PORTNAME}" "Game;Shooter;" ""
 
 .include "${.CURDIR}/../doom-data/Makefile.include"
 
 post-install:
 	${INSTALL_DATA} ${FILESDIR}/${PORTNAME}.xpm \
 	    ${STAGEDIR}${PREFIX}/share/pixmaps
 
 .include <bsd.port.mk>
diff --git a/games/gzdoom/files/patch-src_common_platform_posix_sdl_sdlglvideo.cpp b/games/gzdoom/files/patch-src_common_platform_posix_sdl_sdlglvideo.cpp
new file mode 100644
index 000000000000..6e001316a22b
--- /dev/null
+++ b/games/gzdoom/files/patch-src_common_platform_posix_sdl_sdlglvideo.cpp
@@ -0,0 +1,13 @@
+--- src/common/platform/posix/sdl/sdlglvideo.cpp.orig	2021-10-20 06:18:37 UTC
++++ src/common/platform/posix/sdl/sdlglvideo.cpp
+@@ -396,9 +396,7 @@ SDLVideo::SDLVideo ()
+ 	}
+ 
+ 	// Fail gracefully if we somehow reach here after linking against a SDL2 library older than 2.0.6.
+-	SDL_version sdlver;
+-	SDL_GetVersion(&sdlver);
+-	if (!(sdlver.patch >= 6))
++	if (!SDL_VERSION_ATLEAST(2, 0, 6))
+ 	{
+ 		I_FatalError("Only SDL 2.0.6 or later is supported.");
+ 	}