Evo-gen False Positive on NSIS

Avast is detecting NSIS as “Win32:Evo-gen [Susp]”… It happens with every installer I try to make…

No other antiviruses have a detection on it.

https://www.virustotal.com/en/file/10d5b43d49786e8c559da12d7371f72498c7b51d6f94fdce843b3302526f0bd3/analysis/

Link: https://www.sendspace.com/file/3nxfsy
Password to zip: fp

You can report a possible FP here: http://www.avast.com/contact-us.php?subject=VIRUS-FILE