--- Convert-BER-XS/XS.pm	2019/04/19 20:42:31	1.8
+++ Convert-BER-XS/XS.pm	2019/04/19 20:43:12	1.9
@@ -122,7 +122,7 @@
    $ber = ber_decode $binbuf;
 
    # the following is NOT legal:
-   $ber->[BER_CLASS] = ASN_PRIVATE; # ERROR, readonly(!)
+   $ber->[BER_CLASS] = ASN_PRIVATE; # ERROR, class/tag/constructed are readonly(!)
 
    # but all of the following are fine:
    $ber->[BER_DATA] = "string";