diff --git a/tools/build/mk/OptionalObsoleteFiles.inc b/tools/build/mk/OptionalObsoleteFiles.inc
index e5e44e9e0082..941a28fcde8c 100644
--- a/tools/build/mk/OptionalObsoleteFiles.inc
+++ b/tools/build/mk/OptionalObsoleteFiles.inc
@@ -7,7 +7,6 @@
 
 .if ${MK_ACCT} == no
 OLD_FILES+=etc/periodic/daily/310.accounting
-OLD_FILES+=etc/periodic/monthly/200.accounting
 OLD_FILES+=usr/sbin/accton
 OLD_FILES+=usr/sbin/sa
 OLD_FILES+=usr/share/man/man8/accton.8.gz