Index: head/share/mk/suite.test.mk
===================================================================
--- head/share/mk/suite.test.mk
+++ head/share/mk/suite.test.mk
@@ -120,5 +120,7 @@
 #       etc.
 aftercheck:
 	@cd ${.CURDIR} && ${MAKE} clean
+	@chflags -R 0 "${DESTDIR}"
+	@rm -Rf "${DESTDIR}"
 
 .endif