diff --git a/mk/targets.mk b/mk/targets.mk
index fc5bed134..693e3781f 100644
--- a/mk/targets.mk
+++ b/mk/targets.mk
@@ -5,7 +5,7 @@ DISTFILES_extra=  Makefile request-assign-future.txt contrib etc
 
 LISPDIRS      = lisp
 OTHERDIRS     = doc etc
-CLEANDIRS     = contrib testing mk
+CLEANDIRS     = testing mk
 SUBDIRS       = $(OTHERDIRS) $(LISPDIRS)
 INSTSUB       = $(SUBDIRS:%=install-%)
 ORG_MAKE_DOC ?= info html pdf