diff --git a/x11/hyprpaper/Makefile b/x11/hyprpaper/Makefile
index 8dab8c74a064..ebdbdf88f226 100644
--- a/x11/hyprpaper/Makefile
+++ b/x11/hyprpaper/Makefile
@@ -1,43 +1,48 @@
 PORTNAME=	hyprpaper
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.7.1
 CATEGORIES=	x11 wayland
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Blazing fast Wayland wallpaper utility with IPC controls
 WWW=		https://github.com/hyprwm/hyprpaper
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	hyprwayland-scanner>=0.4.0:devel/hyprwayland-scanner \
 		wayland-protocols>0:graphics/wayland-protocols
 LIB_DEPENDS=	libhyprlang.so:devel/hyprlang \
 		libhyprutils.so:devel/hyprutils \
 		libwayland-client.so:graphics/wayland \
 		libwebp.so:graphics/webp
 
 USES=		compiler:c++11-lib cmake gnome jpeg localbase:ldflags pkgconfig
 USE_GNOME=	cairo
 USE_GITHUB=	yes
 GH_ACCOUNT=	hyprwm
 PLIST_FILES=	bin/${PORTNAME}
 
+# XXX Drop after FreeBSD 14.0 EOL around 2024-10-01
+.if exists(/usr/lib/libc++.so) && !exists(/usr/include/c++/v1/__format/write_escaped.h)
+CXXFLAGS+=	-fexperimental-library
+.endif
+
 post-patch:
 # Extract (snapshot) version from the port instead of Git
 	@${REINPLACE_CMD} -i .nogit -e '/Get git info/,/^include/{//p;d;}' \
 		-e 's/$${GIT_BRANCH}/main/' \
 		-e 's/$${GIT_COMMIT_HASH}/${GH_TAGNAME}/' \
 		-e 's/$${GIT_COMMIT_MESSAGE}/?/' \
 		-e 's/$${GIT_DIRTY}/portbld/' \
 		${WRKSRC}/CMakeLists.txt
 # Drop unused dependencies
 	@${REINPLACE_CMD} -e '/pango/d' \
 		-e '/OpenGL/d; /GLESv2/d' \
 		-e '/ rt)/d' \
 		${WRKSRC}/CMakeLists.txt
 # Respect consolekit2 as XDG_RUNTIME_DIR fallback
 	@${REINPLACE_CMD} 's,/run/user,/var&,' \
 		${WRKSRC}/src/ipc/Socket.cpp
 
 .include <bsd.port.mk>