named exiting every hour

[BIJU KURIAN]

I am getting the following error on naed and it is exiting every hour.
any workaround/solution to this problem ?
=20
Version 9.2.3rc2 on Linux

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db.c:431: REQUIRE(dns_name_issubdomain(name, &db->origin)) failed
named[4618]: exiting (due to assertion failure)
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BIJU