diff --git a/lang/m2/comp/Resolve b/lang/m2/comp/Resolve
index 2ebdcb1de..a551de292 100755
--- a/lang/m2/comp/Resolve
+++ b/lang/m2/comp/Resolve
@@ -15,6 +15,9 @@ main)	target=$currdir/$1
 omain)	target=$currdir/$1
 	options=-DPEEPHOLE
 	;;
+cemain)	target=$currdir/$1
+	options=-DCODE_EXPANDER
+	;;
 Xlint)	target=$1
 	;;
 *)	echo "$0: $1: Illegal argument" 1>&2