diff --git a/sys/dev/disk/isp/isp.c b/sys/dev/disk/isp/isp.c
--- a/sys/dev/disk/isp/isp.c
+++ b/sys/dev/disk/isp/isp.c
@@ -6280,7 +6280,6 @@
 		isp_xs_prt(isp, xs, ISP_LOGERR, "SDTR Message Failed");
 		if (IS_SCSI(isp)) {
 			sdparam *sdp = SDPARAM(isp, XS_CHANNEL(xs));
-			sdp += XS_CHANNEL(xs);
 			sdp->isp_devparam[XS_TGT(xs)].goal_flags &= ~DPARM_SYNC;
 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
 			sdp->update = 1;