--- ../bash-3.1/subst.c     2006-01-14 01:12:02.000000000 +0100
+++ subst.c     2006-01-14 01:12:39.000000000 +0100
@@ -5814,7 +5814,7 @@
     {
       t_index++;
       free (name);
-      temp1 = string_extract (string, &t_index, "#%:-=?+/}", 0);
+      temp1 = string_extract (string, &t_index, "#%:-=?+/}", EX_VARNAME);
       name = (char *)xmalloc (3 + (strlen (temp1)));
       *name = string[sindex];
       if (string[sindex] == '!')