diff --git a/audio/lv2proc/Makefile b/audio/lv2proc/Makefile
index 953404e87ef8..7fdc199533e2 100644
--- a/audio/lv2proc/Makefile
+++ b/audio/lv2proc/Makefile
@@ -1,35 +1,33 @@
 PORTNAME=	lv2proc
 DISTVERSION=	0.5.1
 PORTREVISION=	4
 CATEGORIES=	audio
 MASTER_SITES=	SF/naspro/naspro/${DISTVERSION}/
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Simple command line effect processor using LV2 plugins
 WWW=		https://sourceforge.net/projects/naspro/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-BROKEN=		fails to build with audio/lilv 0.26.4
-
 LIB_DEPENDS=	liblilv-0.so:audio/lilv \
 		libserd-0.so:devel/serd \
 		libsndfile.so:audio/libsndfile \
 		libsord-0.so:devel/sord \
 		libsratom-0.so:audio/sratom
 
 USES=		gmake pkgconfig tar:bz2
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
 
 PLIST_FILES=	bin/lv2proc \
 		share/man/man1/lv2proc.1.gz
 
 .include <bsd.port.options.mk>
 
 .if ${OPSYS} == FreeBSD
 CFLAGS+=	-Wno-error=strict-prototypes
 .endif
 
 .include <bsd.port.mk>
diff --git a/audio/lv2proc/files/patch-src_Makefile.in b/audio/lv2proc/files/patch-src_Makefile.in
new file mode 100644
index 000000000000..c32b2550bb2a
--- /dev/null
+++ b/audio/lv2proc/files/patch-src_Makefile.in
@@ -0,0 +1,15 @@
+-- Silence build failure with newer audio/lilv, whose headers use Clang
+-- nullability extensions (_Nonnull/_Nullable). Upstream's -Werror turns
+-- the resulting -Wnullability-extension warnings into hard errors.
+
+--- src/Makefile.in.orig	2026-09-16 00:58:51 UTC
++++ src/Makefile.in
+@@ -251,7 +251,7 @@ top_srcdir = @top_srcdir@
+ top_build_prefix = @top_build_prefix@
+ top_builddir = @top_builddir@
+ top_srcdir = @top_srcdir@
+-AM_CFLAGS = -pedantic -Wall -Werror @SNDFILE_CFLAGS@ @LILV_CFLAGS@
++AM_CFLAGS = -pedantic -Wall -Werror -Wno-error=nullability-extension @SNDFILE_CFLAGS@ @LILV_CFLAGS@
+ lv2proc_SOURCES = main.c
+ all: all-am
+