// stg_block_async_info stack frame, because
// the block_info field will be overwritten by
// pushOnRunQueue().
- tso->sp[1] = (W_)tso->block_info.async_result;
+ tso->stackobj->sp[1] = (W_)tso->block_info.async_result;
pushOnRunQueue(&MainCapability, tso);
break;
}