field value missing [rec$seen$where] error

Hi,

event Intel::log_intel (rec: Intel::Info)
{

error line —> if ( rec$seen$where == HTTP::IN_HOST_HEADER )
{

Log::write(Intel::LOG,[$ts=network_time(),$test=fmt(“host header”),$test1=fmt(“ihttp”) ]);

}

my above code is running and generating intel.log but its giving below error
anythink i am missing ?

line 21: field value missing [rec$seen$where]

Regards,
Sunu

It's just rec$seen

  .Seth