diff --git a/src/check-libstdc++.sh b/src/check-libstdc++.sh
index ce0bdab75..a7b4c495f 100755
--- a/src/check-libstdc++.sh
+++ b/src/check-libstdc++.sh
@@ -22,8 +22,7 @@ fi
 
 tested=false
 # harfbuzz-icu links to libstdc++ because icu does.
-# harfbuzz-subset uses libstdc++.
-for soname in harfbuzz harfbuzz-gobject; do
+for soname in harfbuzz harfbuzz-subset harfbuzz-gobject; do
 	for suffix in so dylib; do
 		so=$libs/lib$soname.$suffix
 		if ! test -f "$so"; then continue; fi