diff --git a/ch07.asciidoc b/ch07.asciidoc
index e9c45ce7..e2f6dc37 100644
--- a/ch07.asciidoc
+++ b/ch07.asciidoc
@@ -314,7 +314,7 @@ Relative timelocks, like absolute timelocks, are implemented with both a transac
 
 BIP-68 and BIP-112 were activated in May 2016 as a soft fork upgrade to the consensus rules.
 
-==== Relative Timelock with nSequence
+==== Relative Timelocks with nSequence
 
 ((("nSequence field")))((("scripting", "timelocks", "relative timelocks with nSequence")))Relative timelocks can be set on each input of a transaction, by setting the +nSequence+ field in each input.