clang x86 assembler 8-bit displacements

This time a question about the integrated assembler
------- code
  .code32
  .data
L1:
  .quad 88
.equ L2, . - L1
  .byte 29

  .text
  mov 55(%ebx), %eax
  mov L2(%ebx), %eax
-------- end code

clang -c -o file.o file.s gives this