diff --git a/graphics/charls/Makefile b/graphics/charls/Makefile
index 6edbba082435..0be5deed2fde 100644
--- a/graphics/charls/Makefile
+++ b/graphics/charls/Makefile
@@ -1,22 +1,28 @@
 PORTNAME=	charls
 PORTVERSION=	2.4.3
 CATEGORIES=	graphics
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	C++ JPEG-LS library implementation
 WWW=		https://github.com/team-charls/charls
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 USES=		cmake compiler:c++14-lang
 
-CMAKE_ON=	BUILD_SHARED_LIBS BUILD_TESTING
+CMAKE_OFF=	CHARLS_BUILD_FUZZ_TEST \
+		CHARLS_BUILD_TESTS \
+		CHARLS_PEDANTIC_WARNINGS \
+		CHARLS_TREAT_WARNING_AS_ERROR
+CMAKE_ON=	BUILD_SHARED_LIBS \
+		CHARLS_BUILD_SAMPLES \
+		CHARLS_INSTALL
 USE_LDCONFIG=	yes
 
 PLIST_SUB=	PORTVERSION=${PORTVERSION}
 
 GH_ACCOUNT=	team-charls
 USE_GITHUB=	yes
 
 .include <bsd.port.mk>