diff --git a/devel/hyprwayland-scanner/Makefile b/devel/hyprwayland-scanner/Makefile
index 01022242b3df..51d3ed40f831 100644
--- a/devel/hyprwayland-scanner/Makefile
+++ b/devel/hyprwayland-scanner/Makefile
@@ -1,21 +1,27 @@
 PORTNAME=	hyprwayland-scanner
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.3.2
 CATEGORIES=	devel
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Hyprland implementation of wayland-scanner
 WWW=		https://github.com/hyprwm/hyprwayland-scanner
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libpugixml.so:textproc/pugixml
 
 USES=		cmake compiler:c++11-lib pathfix pkgconfig
 USE_GITHUB=	yes
 GH_ACCOUNT=	hyprwm
 PLIST_FILES=	bin/${PORTNAME} \
 		libdata/pkgconfig/${PORTNAME}.pc
 
+# XXX Drop after FreeBSD 14.0 EOL around 2025-03-01
+.if exists(/usr/include/c++/v1/__format/format_functions.h) && \
+   !exists(/usr/include/c++/v1/__format/write_escaped.h)
+CXXFLAGS+=	-fexperimental-library
+.endif
+
 .include <bsd.port.mk>