include a structure in a TYPES declaration

Hii

I have a structure BISEG

i need to declare an internal tabel with that structure BISEG + some additional fields

i did like below please advise if this correct

TYPES begin of types ty_itab
                     include type BISEG
                     xxxx type xxx
                     xxxx type xxx
            End of types ty_itab


DATA:
   itat TYPE standard tabel of ty_itab

note i don't want to use header line