diff --git a/ch01.asciidoc b/ch01.asciidoc
index 89e2cf9..d3720bd 100644
--- a/ch01.asciidoc
+++ b/ch01.asciidoc
@@ -34,7 +34,7 @@ Such a payment channel would then be valid as long as the transaction was not mi
 
 According to a mailing list post in 2013, by early Bitcoin developer Mike Hearn, Satoshi Nakamoto envisioned this construct for high frequency trading.footnote:HearnBitcoinDev[Mike Hearn on Bitcoin-dev - April 16th 2013 - Anti DoS for tx replacement http://web.archive.org/web/20190501234757/https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2013-April/002433.html.]
 
-However, there were some weaknesses in this initial formulation that limited its potential. Firstly, the payment channel would only be open until the transaction was mined in a block, either limiting the duration the payment channel or handing control of the payment channel to the miners. Secondly, there was no economic incentive for miners to respect the `nSequence` number, reducing the utility of this mechanism.
+However, there were some weaknesses in this initial formulation that limited its potential. Firstly, the payment channel would only be open until the transaction was mined in a block, either limiting the duration of the payment channel or handing control of the payment channel to the miners. Secondly, there was no economic incentive for miners to respect the `nSequence` number, reducing the utility of this mechanism.
 
 The Revocable Sequence Maturity Contracts (RSMC), which formed payment channels in the first version of the Lightning Network, reference in their name the fact that they fixed this weakness of the `nSequence` field.