diff -up ksh-20120801/src/cmd/ksh93/sh/macro.c.orig ksh-20120801/src/cmd/ksh93/sh/macro.c
--- ksh-20120801/src/cmd/ksh93/sh/macro.c.orig	2015-08-24 14:29:58.602967855 -0300
+++ ksh-20120801/src/cmd/ksh93/sh/macro.c	2015-08-24 14:31:13.682850008 -0300
@@ -1479,7 +1479,10 @@ retry1:
 	    default:
 		goto nosub;
 	}
-	c = fcmbget(&LEN);
+	if(type)
+		c = fcmbget(&LEN);
+	else
+		c = fcget();
 	if(type>M_TREE)
 	{
 		if(c!=RBRACE)