flat assembler - FASM for win64 - import by ordinal doesn't work

FASM for win64 - import by ordinal doesn't work

Following is the code snippets:

\INCLUDE\MACRO\IMPORT64.INC

Code:

macro import name,[label,string]
 { common
...
      if string eqtype ''
       local _label
       dq RVA _label
      else
       dq [b]80000000h[/b] + string
      end if
...
      if string eqtype ''
       label dq RVA _label
      else
       label dq [b]80000000h[/b] + string
      end if
...
   common
    end if }

The number 80000000h should be 64-bit on win64 platform.
It had worked fine when the number was set to 8000000000000000h for the code.