diff --git a/audio/alacenc/Makefile b/audio/alacenc/Makefile
index 78b28be63cc1..7873770c82ac 100644
--- a/audio/alacenc/Makefile
+++ b/audio/alacenc/Makefile
@@ -1,18 +1,23 @@
 PORTNAME=	alacenc
 PORTVERSION=	0.4.1
 DISTVERSIONPREFIX=	v
 CATEGORIES=	audio
 
 MAINTAINER=	danfe@FreeBSD.org
 COMMENT=	Apple Lossless Audio Codec (ALAC) format encoder
 WWW=		https://github.com/flacon/alacenc
 
 LICENSE=	MIT
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	flacon
 
 PLIST_FILES=	bin/${PORTNAME}
 
+post-patch:
+	@${FIND} ${WRKSRC} -type f -name CMakeLists.txt -print0 | ${XARGS} \
+		-0 ${REINPLACE_CMD} -e '/cmake_minimum_required(VERSION/ \
+			s,3\.[0-9],&...9.9,'
+
 .include <bsd.port.mk>