diff --git a/mk/paths.mk b/mk/paths.mk
index 11668e94808855f62d3c5675b11b1a14661f83b1..d52c6425f4e6ab00ef9f983cb9366856b879c8f4 100644
--- a/mk/paths.mk
+++ b/mk/paths.mk
@@ -155,7 +155,7 @@ MAINTAINER_CLEAN_FILES += .depend $(BOOT_SRCS)
 # `Standard' set of files to clean out.
 #
 MOSTLY_CLEAN_FILES += \
- *.CKP *.ln *.BAK *.bak *.o core a.out errs ,* *.a .emacs_*	     \
+ *.CKP *.ln *.BAK *.bak *.o *.hc core a.out errs ,* *.a .emacs_*	     \
  tags TAGS *.ind *.ilg *.idx *.idx-prev *.aux *.aux-prev *.dvi *.log \
  *.toc *.lot *.lof *.blg *.info *.itxi *.itex *.ihtml *.cb