diff --git a/print/harfbuzz-icu/Makefile b/print/harfbuzz-icu/Makefile
index a651fa64d78b..f2dc8aadc1ad 100644
--- a/print/harfbuzz-icu/Makefile
+++ b/print/harfbuzz-icu/Makefile
@@ -1,4 +1,4 @@
-PORTREVISION=	0
+PORTREVISION=	1
 PKGNAMESUFFIX=	-icu
 
 COMMENT=	Harfbuzz ICU support
diff --git a/print/harfbuzz/Makefile b/print/harfbuzz/Makefile
index 00b3ce82a446..d0a1d9dead79 100644
--- a/print/harfbuzz/Makefile
+++ b/print/harfbuzz/Makefile
@@ -39,6 +39,7 @@ DOCS_MESON_ENABLED=	docs
 MESON_ARGS+=	-Dicu=disabled -Dcairo=disabled
 .elif ${HARFBUZZ_SLAVE} == icu
 MESON_ARGS+=	-Dicu=enabled -Dcairo=disabled -Ddocs=disabled
+MESON_ARGS+=	-Dcpp_std=c++17 # https://github.com/harfbuzz/harfbuzz/issues/4671
 LIB_DEPENDS+=	libharfbuzz.so:print/harfbuzz \
 		libicudata.so:devel/icu