diff --git a/untls_proxy.py b/untls_proxy.py
index 4f7963b..41e63d6 100755
--- a/untls_proxy.py
+++ b/untls_proxy.py
@@ -253,6 +253,8 @@ def proxy(sock, host):
 			print('Bad port number', file=sys.stderr)
 			sock.sendall(b'HTTP/1.0 400 Bad Request\r\n\r\nBad port number\n')
 			return
+	if remote_host[:1] == b'[' and remote_host[-1:] == b']': #IPv6
+		remote_host = remote_host[1:-1]
 	try:
 		remote_host = remote_host.decode('ascii')
 	except UnicodeDecodeError: