/netflow.c:301: error: 'struct netflow' has no member named 'zone6'

I get the shown error message while compiling a customized kernel since 
the last two days (/usr/src/ up to date).

Is this an well known issue or is there something wrong with my config?


Oliver

/usr/src/sys/modules/netgraph/netflow/../../../netgraph/netflow/netflow.c: 
In function 'expire_flow':
/usr/src/sys/modules/netgraph/netflow/../../../netgraph/netflow/netflow.c:286: 
error: 'struct netflow' has no member named 'zone6'
/usr/src/sys/modules/netgraph/netflow/../../../netgraph/netflow/netflow.c:301: 
error: 'struct netflow' has no member named 'zone6'
*** Error code 1

Stop in /usr/src/sys/modules/netgraph/netflow.
*** Error code 1

Stop in /usr/src/sys/modules/netgraph.
*** Error code 1

Stop in /usr/src/sys/modules.
*** Error code 1

Stop in /usr/obj/usr/src/sys/TELESTO.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.