message untaring rc2... is ok?

Hi!

I do tar -xzvf modx-0.9.6-rc2.tar.gz
and at the end of the proccess I see:

gzip: stdin: decompression OK, trailing garbage ignored
modx-0.9.6-rc2/manager/includes/SLLists.class.php
tar: Child returned status 2
tar: Error exit delayed from previous errors

Is this ok?
I will have problems with that file?

It’s just a problem tar is reporting because this server is double-compressing the file when delivering it; all the extracted files should be just fine though.