diff --git a/audio/sox/Makefile b/audio/sox/Makefile
index a9b0947c735a..d97c283e6731 100644
--- a/audio/sox/Makefile
+++ b/audio/sox/Makefile
@@ -3,9 +3,13 @@
 
 PORTNAME=	sox
 PORTVERSION=	14.4.2
+PORTREVISION=	1
 CATEGORIES=	audio
 MASTER_SITES=	SF
 
+PATCHFILES=	0001-Remove-pure-attribute-from-functions-with-side-effec.patch:-p1
+PATCH_SITES=	https://sourceforge.net/p/sox/patches/104/attachment/
+
 MAINTAINER=	dnelson@allantgroup.com
 COMMENT=	SOund eXchange - universal sound sample translator
 
diff --git a/audio/sox/distinfo b/audio/sox/distinfo
index 17badd9a89d5..7a9148a855f0 100644
--- a/audio/sox/distinfo
+++ b/audio/sox/distinfo
@@ -1,2 +1,4 @@
 SHA256 (sox-14.4.2.tar.gz) = b45f598643ffbd8e363ff24d61166ccec4836fea6d3888881b8df53e3bb55f6c
 SIZE (sox-14.4.2.tar.gz) = 1134299
+SHA256 (0001-Remove-pure-attribute-from-functions-with-side-effec.patch) = c267442c506e674b8cba800c0a3425904d91b69f25c0cf5bcb8f31445361c0a0
+SIZE (0001-Remove-pure-attribute-from-functions-with-side-effec.patch) = 1273