diff --git a/mach/vax4/top/table b/mach/vax4/top/table
index 19a4ce8a..6b726d3e 100644
--- a/mach/vax4/top/table
+++ b/mach/vax4/top/table
@@ -93,8 +93,6 @@ subw2 $-NUM,X			->	addw2 $NUM,X;
 subl2 $-NUM,X			->	addl2 $NUM,X;
 subw3 $-NUM,X,Y			->	addw3 $NUM,X,Y;
 subl3 $-NUM,X,Y			->	addl3 $NUM,X,Y;
-subw3 X,$-NUM,Y			->	addw3 $NUM,X,Y;
-subl3 X,$-NUM,Y			->	addl3 $NUM,X,Y;
 
 /* use special instructions */