Assign table with header line to field symbol.

Hello.

Following situation:

There is a table '(SAPLIBMA)XTIBAN[]' in the loaded programs.

The declaration of the table is XITIBAN LIKE ITIBAN OCCURS 0 WITH HEADER LINE.

When I want to assign the table into a field symbol

FIELD-SYMBOLS: <FS_XTIBAN> TYPE ANY TABLE.
ASSIGN '(SAPLIBMA)XTIBAN[]' TO <FS_XTIBAN>.

system says that (SAPLIBMA)XTIBAN[] is incompatible to <FS_XTIBAN>.

Is there a possibility to solve this?

Thanks in advance.

Gerhard