diff --git a/x11-themes/gtk3-oxygen-engine/Makefile b/x11-themes/gtk3-oxygen-engine/Makefile
index eec757c082d8..ed9ebafa1cca 100644
--- a/x11-themes/gtk3-oxygen-engine/Makefile
+++ b/x11-themes/gtk3-oxygen-engine/Makefile
@@ -1,22 +1,24 @@
 PORTNAME=	oxygen
 PORTVERSION=	1.4.1
 PORTREVISION=	5
 CATEGORIES=	x11-themes
 MASTER_SITES=	KDE/stable/${PORTNAME}-gtk3/${PORTVERSION}/src
 PKGNAMEPREFIX=	gtk3-
 PKGNAMESUFFIX=	-engine
 DISTNAME=	${PORTNAME}-gtk3-${PORTVERSION}
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Oxygen GTK 3 engine and theme
 WWW=		http://kde-look.org/content/show.php/?content=136216
 
 LICENSE=	LGPL21
 
 LIB_DEPENDS=	libcairo.so:graphics/cairo \
 		libdbus-glib-1.so:devel/dbus-glib
 
 USES=		cmake compiler:c++11-lang gnome pkgconfig tar:bzip2
 USE_GNOME=	gtk30
 
+CMAKE_ARGS=	-DCMAKE_POLICY_VERSION_MINIMUM=3.5
+
 .include <bsd.port.mk>