diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 74be04f2357c..ae5935c0a149 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -744,7 +744,7 @@ transfer_bytes(const wd33c93_regs regs, struct scsi_cmnd *cmd,
  * source or destination for THIS transfer.
  */
 	if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
-		++cmd->SCp.buffer;
+		cmd->SCp.buffer = sg_next(cmd->SCp.buffer);
 		--cmd->SCp.buffers_residual;
 		cmd->SCp.this_residual = cmd->SCp.buffer->length;
 		cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);