diff --git a/Makefile b/Makefile
index 51c1fed711..960f98e801 100644
--- a/Makefile
+++ b/Makefile
@@ -963,7 +963,7 @@ dist-doc:
 
 clean:
 	rm -f *.o mozilla-sha1/*.o arm/*.o ppc/*.o compat/*.o xdiff/*.o \
-		$(LIB_FILE) $(XDIFF_LIB)
+		test-chmtime$X $(LIB_FILE) $(XDIFF_LIB)
 	rm -f $(ALL_PROGRAMS) $(BUILT_INS) git$X
 	rm -f *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h TAGS tags
 	rm -rf autom4te.cache