diff --git a/sys/dev/aic7xxx/aic7xxx.c b/sys/dev/aic7xxx/aic7xxx.c
--- a/sys/dev/aic7xxx/aic7xxx.c
+++ b/sys/dev/aic7xxx/aic7xxx.c
@@ -4931,7 +4931,6 @@
 		for (i = 0; i < AHC_TMODE_CMDS; i++)
 			ahc->targetcmds[i].cmd_valid = 0;
 		ahc_sync_tqinfifo(ahc, BUS_DMASYNC_PREREAD);
-		ahc->qoutfifo = (uint8_t *)&ahc->targetcmds[256];
 	}
 	ahc->qinfifo = &ahc->qoutfifo[256];
 
diff --git a/sys/dev/aic7xxx/aic7xxx_inline.h b/sys/dev/aic7xxx/aic7xxx_inline.h
--- a/sys/dev/aic7xxx/aic7xxx_inline.h
+++ b/sys/dev/aic7xxx/aic7xxx_inline.h
@@ -217,7 +217,7 @@
 static __inline uint32_t
 ahc_targetcmd_offset(struct ahc_softc *ahc, u_int index)
 {
-	return (((uint8_t *)&ahc->targetcmds[index]) - ahc->qoutfifo);
+	return (((uint8_t *)&ahc->targetcmds[index]) - (uint8_t *)ahc->targetcmds);
 }
 
 /******************************** Debugging ***********************************/