From c96826beaaeaa9ab08d613cf8b07756c3c591172 Mon Sep 17 00:00:00 2001
From: keorn <pczaban@gmail.com>
Date: Tue, 13 Dec 2016 18:22:56 +0100
Subject: [PATCH] expect instead of index

---
 ethcore/src/engines/tendermint/message.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ethcore/src/engines/tendermint/message.rs b/ethcore/src/engines/tendermint/message.rs
index ab6bdb04c..3e5da592d 100644
--- a/ethcore/src/engines/tendermint/message.rs
+++ b/ethcore/src/engines/tendermint/message.rs
@@ -51,7 +51,7 @@ impl ConsensusMessage {
 
 	pub fn new_proposal(header: &Header) -> Result<Self, ::rlp::DecoderError> {
 		Ok(ConsensusMessage {
-			signature: try!(UntrustedRlp::new(header.seal()[1].as_slice()).as_val()),
+			signature: try!(UntrustedRlp::new(header.seal().get(1).expect("seal passed basic verification; seal has 3 fields; qed").as_slice()).as_val()),
 			height: header.number() as Height,
 			round: try!(consensus_round(header)),
 			step: Step::Propose,