diff --git a/games/openttd/Makefile b/games/openttd/Makefile
index 12ef1dbac690..48a7d231120e 100644
--- a/games/openttd/Makefile
+++ b/games/openttd/Makefile
@@ -1,56 +1,64 @@
 PORTNAME=	openttd
 DISTVERSION=	13.0
 CATEGORIES=	games
 MASTER_SITES=	https://proxy.binaries.openttd.org/openttd-releases/${DISTVERSION}/
 DISTNAME=	${PORTNAME}-${DISTVERSION}-source
 
 MAINTAINER=	danfe@FreeBSD.org
 COMMENT=	Open source clone of Microprose Transport Tycoon Deluxe
 WWW=		https://www.openttd.org/
 
 LICENSE=	GPLv2
 
 LIB_DEPENDS=	libpng.so:graphics/png \
 		liblzo2.so:archivers/lzo2
 
-USES=		cmake compiler:c++17-lang cpe pkgconfig tar:xz
+USES=		cmake cpe pkgconfig tar:xz
 CMAKE_ARGS=	-DCMAKE_INSTALL_BINDIR:PATH=bin \
 		-DCMAKE_INSTALL_DATADIR:PATH=share
 
 WRKSRC=		${WRKDIR}/${PORTNAME}-${DISTVERSION}
 
 OPTIONS_DEFINE=	DOCS FLUIDSYNTH SAVE_PASSWORDS SERVER
 SERVER_PREVENTS=	FLUIDSYNTH
 
 FLUIDSYNTH_LIB_DEPENDS=	libfluidsynth.so:audio/fluidsynth
 FLUIDSYNTH_CMAKE_ON=	-DWITH_FLUIDSYNTH:BOOL=ON
 
 SAVE_PASSWORDS_DESC=	Save passwords between server restarts
 SAVE_PASSWORDS_EXTRA_PATCHES=	${FILESDIR}/extra-patch-save-passwords
 
 SERVER_DESC=		Build dedicated server only (no GUI)
 SERVER_USES_OFF=	gnome sdl
 SERVER_USE_OFF=		SDL=${_SDL_VERSION}
 SERVER_CMAKE_ON=	-DOPTION_DEDICATED:BOOL=ON
 SERVER_LIB_DEPENDS_OFF=	libfontconfig.so:x11-fonts/fontconfig \
 			libfreetype.so:print/freetype2 \
 			libicui18n.so:devel/icu \
 			libicu-le-hb.so:devel/icu-le-hb \
 			libiculx.so:devel/icu-lx
 SERVER_VARS=		USE_RC_SUBR=${PORTNAME}
 
 .include <bsd.port.options.mk>
 
+.if ${ARCH:Mpowerpc*} && ${OSVERSION} > 1400078
+USES+=		llvm:min=16
+CC=		clang${LLVM_VERSION}
+CXX=		clang++${LLVM_VERSION}
+.else
+USES+=		compiler:c++17-lang
+.endif
+
 .if exists(${LOCALBASE}/lib/libSDL2.so)
 _SDL_VERSION=		sdl2
 .else
 _SDL_VERSION=		sdl
 .endif
 
 post-install-SERVER-on:
 	@${REINPLACE_CMD} -E '/\.desktop|icons|pixmaps/d' ${TMPPLIST}
 
 do-test:
 	@cd ${TEST_WRKSRC} && ctest -C ${CMAKE_BUILD_TYPE} ${_MAKE_JOBS}
 
 .include <bsd.port.mk>