diff --git a/ch06_transactions.adoc b/ch06_transactions.adoc
index 59f44790..41199c89 100644
--- a/ch06_transactions.adoc
+++ b/ch06_transactions.adoc
@@ -579,7 +579,7 @@ as defined by BIP68.
 image::images/mbc3_0603.png["BIP68 definition of sequence encoding"]
 
 Note that any transaction that sets a relative timelock using sequence
-also sends the signal for opt-in replace by fee ((("transactions", "inputs", startref="transaction-input")))((("inputs", startref="input-transaction")))((("transactions", "inputs", "sequence field", startref="transaction-input-sequence")))((("inputs", "sequence field", startref="input-transaction-sequence")))((("sequence field (transaction inputs)", startref="sequence-field")))((("relative timelocks", startref="relative-timelock")))as described in
+also sends the signal for opt-in replace by fee ((("transactions", "inputs", startref="transaction-input")))((("inputs", startref="input-transaction")))((("transactions", "inputs", "sequence field", startref="transaction-input-sequence")))((("inputs", "sequence field", startref="input-transaction-sequence")))((("sequence field (transaction inputs)", startref="sequence-field")))as described in
 <<sequence-bip125>>.
 
 === Outputs