diff --git a/makefile b/makefile
index 1f3c644f..9a3d5c87 100644
--- a/makefile
+++ b/makefile
@@ -1527,8 +1527,8 @@ ALL = pdp1 pdp4 pdp7 pdp8 pdp9 pdp15 pdp11 pdp10 \
 	vax microvax3900 microvax1 rtvax1000 microvax2 vax730 vax750 vax780 vax8600 \
 	nova eclipse hp2100 hp3000 i1401 i1620 s3 altair altairz80 gri \
 	i7094 ibm1130 id16 id32 sds lgp h316 cdc1700 \
-	swtp6800mp-a swtp6800mp-a2 tx-0 ssem isys8010 isys8020 \
-	isys8030 b5500 ibmpc ibmpcxt isys8024
+	swtp6800mp-a swtp6800mp-a2 tx-0 ssem b5500 isys8010 isys8020 \
+	isys8030 isys8024
 
 all : ${ALL}