diff --git a/cad/verilator/Makefile b/cad/verilator/Makefile
index 7cecedcda41b..5f7e8d0323f2 100644
--- a/cad/verilator/Makefile
+++ b/cad/verilator/Makefile
@@ -1,47 +1,51 @@
 PORTNAME=	verilator
 DISTVERSION=	4.210
+PORTREVISION=	1
 CATEGORIES=	cad
 MASTER_SITES=	https://www.veripool.org/ftp/
 
+PATCH_SITES=	https://github.com/verilator/verilator/commit/
+PATCHFILES=	9907d211ff5fa408a7eb6387ef0ceaedaeea2d32.patch:-p1 # backport of bug fix: https://github.com/verilator/verilator/commit/9907d211ff5fa408a7eb6387ef0ceaedaeea2d32
+
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Synthesizable Verilog to C++ compiler
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BROKEN_i386=	see https://github.com/verilator/verilator/issues/3037
 
 LIB_DEPENDS=	libsystemc.so:devel/systemc
 RUN_DEPENDS=	gmake:devel/gmake # verilator runs gmake for the --hierarchical option when the 'gmake' method is chosen
 
 USES=		bison compiler:c++14-lang gmake localbase:ldflags pathfix perl5 python:build,run,test shebangfix tar:tgz
 
 SHEBANG_FILES=	bin/verilator_ccache_report
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	INSTALL_PROGRAM="${INSTALL_SCRIPT}"
 
 TEST_TARGET=	test
 
 BINARY_ALIAS=	make=${GMAKE} python3=${PYTHON_CMD} # aliasas are only for tests
 
 OPTIONS_DEFINE=			INSTALL_DBG_EXECUTABLES LEAK_CHECKS
 OPTIONS_SUB=			yes
 
 INSTALL_DBG_EXECUTABLES_DESC=	Install *_dbg executables
 
 LEAK_CHECKS_DESC=		Disable intentional memory leaks
 LEAK_CHECKS_CXXFLAGS=		-DVL_LEAK_CHECKS
 LEAK_CHECKS_BROKEN=		compilation will be fixed in the next release
 
 post-patch:
 	${REINPLACE_CMD} -e 's|@pkgconfigdir@|${PREFIX}/libdata/pkgconfig|' \
 	    ${WRKSRC}/Makefile.in
 
 post-build:
 	@${STRIP_CMD} ${WRKSRC}/bin/verilator_bin
 
 post-install-INSTALL_DBG_EXECUTABLES-off:
 	@${RM} ${STAGEDIR}${PREFIX}/bin/verilator_bin_dbg ${STAGEDIR}${PREFIX}/bin/verilator_coverage_bin_dbg
 
 .include <bsd.port.mk>
diff --git a/cad/verilator/distinfo b/cad/verilator/distinfo
index cb22cc780c7a..3f71f9bc0120 100644
--- a/cad/verilator/distinfo
+++ b/cad/verilator/distinfo
@@ -1,3 +1,5 @@
-TIMESTAMP = 1627977232
+TIMESTAMP = 1629920311
 SHA256 (verilator-4.210.tgz) = 2a821f25e5766884e7c22076790810a386725df31ee9eac58862977b347e2018
 SIZE (verilator-4.210.tgz) = 3229756
+SHA256 (9907d211ff5fa408a7eb6387ef0ceaedaeea2d32.patch) = 52418f475136134e139e70fcdacaedd9f2baa1cd17daa5c0d7e72054dcf87024
+SIZE (9907d211ff5fa408a7eb6387ef0ceaedaeea2d32.patch) = 2303