diff --git a/net/tigervnc-server/files/patch-common_rfb_ZRLEDecoder.cxx b/net/tigervnc-server/files/patch-common_rfb_ZRLEDecoder.cxx
new file mode 100644
index 000000000000..bd97820b5fb7
--- /dev/null
+++ b/net/tigervnc-server/files/patch-common_rfb_ZRLEDecoder.cxx
@@ -0,0 +1,15 @@
+--- common/rfb/ZRLEDecoder.cxx.orig	2024-07-23 08:50:25 UTC
++++ common/rfb/ZRLEDecoder.cxx
+@@ -126,10 +126,10 @@ void ZRLEDecoder::zrleDecode(const Rect& r, rdr::InStr
+   Pixel maxPixel = pf.pixelFromRGB((uint16_t)-1, (uint16_t)-1, (uint16_t)-1);
+   bool fitsInLS3Bytes = maxPixel < (1<<24);
+   bool fitsInMS3Bytes = (maxPixel & 0xff) == 0;
+-  bool isLowCPixel = (sizeof(T) == 4) &&
++  bool isLowCPixel = (sizeof(T) == 4) && (pf.depth <= 24) &&
+                      ((fitsInLS3Bytes && pf.isLittleEndian()) ||
+                       (fitsInMS3Bytes && pf.isBigEndian()));
+-  bool isHighCPixel = (sizeof(T) == 4) &&
++  bool isHighCPixel = (sizeof(T) == 4) && (pf.depth <= 24) &&
+                       ((fitsInLS3Bytes && pf.isBigEndian()) ||
+                        (fitsInMS3Bytes && pf.isLittleEndian()));
+ 
diff --git a/net/tigervnc-viewer/Makefile b/net/tigervnc-viewer/Makefile
index e9161161ec94..5d9644cec68a 100644
--- a/net/tigervnc-viewer/Makefile
+++ b/net/tigervnc-viewer/Makefile
@@ -1,36 +1,38 @@
 PKGNAMESUFFIX=	-viewer
 CATEGORIES=	net
+PORTREVISION=	1
 
 COMMENT=	TigerVNC Viewer
 WWW=		https://tigervnc.org/
 
 USES+=		gnome iconv jpeg magick:7,build xorg
 USE_XORG+=	ice pixman sm x11 xcursor xext xfixes xft xi xinerama xrender xrandr
 
 LIB_DEPENDS+=	libfontconfig.so:x11-fonts/fontconfig \
 		libfltk.so:x11-toolkits/fltk \
 		libnettle.so:security/nettle \
 	 	libgmp.so:math/gmp \
 		libavcodec.so:multimedia/ffmpeg
 
 OPTIONS_DEFINE=	DOCS GNUTLS NLS
 OPTIONS_DEFAULT=	GNUTLS
 OPTIONS_SUB=	yes
 NLS_CMAKE_BOOL=	ENABLE_NLS
 NLS_USES=	gettext
 GNUTLS_CMAKE_BOOL=	ENABLE_GNUTLS
 GNUTLS_LIB_DEPENDS=	libgnutls.so:security/gnutls
 
 DESKTOP_ENTRIES=	"TigerVNC viewer" "Connect to VNC server and display remote desktop" \
 				"${PORTNAME}" "vncviewer" "Network;" false
 DESCR=		${.CURDIR}/pkg-descr
 
 post-patch:
 	# do not build server components and tests
 	@${REINPLACE_CMD} \
 		-e 's|add_subdirectory(unix)||' \
 		-e 's|add_subdirectory(tests)||' \
 		${WRKSRC}/CMakeLists.txt
 
 MASTERDIR=	${.CURDIR}/../tigervnc-server
+
 .include "${MASTERDIR}/Makefile.common.mk"