diff --git a/audio/shntool/Makefile b/audio/shntool/Makefile
index 8f3798b13679..115a5cb07e51 100644
--- a/audio/shntool/Makefile
+++ b/audio/shntool/Makefile
@@ -3,10 +3,13 @@
 
 PORTNAME=	shntool
 DISTVERSION=	3.0.10
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	audio
 MASTER_SITES=	http://shnutils.freeshell.org/shntool/dist/src/
 
+PATCH_SITES=	https://github.com/max619/shntool/commit/
+PATCHFILES=	cfd06e4ed.patch:-p1
+
 MAINTAINER=	multimedia@FreeBSD.org
 COMMENT=	Multi-purpose WAVE data processing and reporting utility
 
diff --git a/audio/shntool/distinfo b/audio/shntool/distinfo
index 1fbc7448efe4..6d590f1bceda 100644
--- a/audio/shntool/distinfo
+++ b/audio/shntool/distinfo
@@ -1,2 +1,5 @@
+TIMESTAMP = 1601793495
 SHA256 (shntool-3.0.10.tar.gz) = 74302eac477ca08fb2b42b9f154cc870593aec8beab308676e4373a5e4ca2102
 SIZE (shntool-3.0.10.tar.gz) = 216061
+SHA256 (cfd06e4ed.patch) = 3ba026ed6c669d8ca25994e25fa0eea4b5dd9f7d2bd15ddcbfbdf62c66f4689f
+SIZE (cfd06e4ed.patch) = 1569