tweaks
diff --git a/unix/make/Makefile.utf b/unix/make/Makefile.utf
index 4d15d10..10e7230 100644
--- a/unix/make/Makefile.utf
+++ b/unix/make/Makefile.utf
@@ -36,6 +36,8 @@
 	install -c -m 0644 utf.7 $(PREFIX)/man/man7/utf.7
 	install -c -m 0644 rune.3 $(PREFIX)/man/man3/rune.3
 	install -c -m 0644 runestrcat.3 $(PREFIX)/man/man3/runestrcat.3
+	mkdir -p $(PREFIX)/include
 	install -c -m 0644 utf.h $(PREFIX)/include/utf.h
+	mkdir -p $(PREFIX)/lib
 	install -c -m 0644 $(LIB) $(PREFIX)/lib/$(LIB)