diff --git a/games/3dc/Makefile b/games/3dc/Makefile
index 6387671812dd..bb7a5b526c20 100644
--- a/games/3dc/Makefile
+++ b/games/3dc/Makefile
@@ -1,39 +1,39 @@
 # Created by: Andrey Zakhvatov
 
 PORTNAME=	3dc
 PORTVERSION=	0.8.1
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	games
 MASTER_SITES=	SUNSITE/games/strategy
 DISTNAME=	3Dc-${PORTVERSION}
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	3-Dimensional Chess for X Window System
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/../GPL
 
 LIB_DEPENDS=	libXaw3d.so:x11-toolkits/Xaw3d
 
 USES=		perl5 xorg
 USE_PERL5=	build
 USE_XORG=	x11 xaw xext xmu xpm xt
 WRKSRC=		${WRKDIR}/3Dc/src
 DOCSDIR=	${PREFIX}/share/doc/3Dc
 
 OPTIONS_DEFINE=	DOCS
 
 post-patch:
 .for file in init.c main.c piece.c stack.c xif.c
 	@${REINPLACE_CMD} -i '' -e 's|malloc.h|stdlib.h|' \
 		${WRKSRC}/${file}
 .endfor
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/3Dc ${STAGEDIR}${PREFIX}/bin
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 .for file in 3Dc-rules.html ACKNOWLEDGEMENTS GPL README TODO
 	${INSTALL_DATA} ${WRKSRC}/../${file} ${STAGEDIR}${DOCSDIR}
 .endfor
 
 .include <bsd.port.mk>
diff --git a/games/3dc/files/patch-xif.c b/games/3dc/files/patch-xif.c
new file mode 100644
index 000000000000..b184d0136707
--- /dev/null
+++ b/games/3dc/files/patch-xif.c
@@ -0,0 +1,11 @@
+--- xif.c.orig	2021-05-12 08:22:05 UTC
++++ xif.c
+@@ -171,7 +171,7 @@ InitMainWindow( GfxInfo *gfx )
+       /* undo, */ resign,
+       musterTitle
+       /* muster */;
+-  int bg;
++  long bg;
+ 
+   form = XtVaCreateManagedWidget("form", formWidgetClass, gfx->mainWindow,
+                                  NULL);