diff --git a/ch02_overview.adoc b/ch02_overview.adoc
index 6a487ed4..2ee88260 100644
--- a/ch02_overview.adoc
+++ b/ch02_overview.adoc
@@ -165,7 +165,7 @@ owner, and so on, in a chain of ownership.
 
 ==== Transaction Inputs and Outputs
 
-Transactions((("transactions", "inputs", id="transaction-input")))((("transactions", "outputs", id="transaction-output")))((("inputs", id="input")))((("outputs", id="output"))) are like lines in a double-entry
+Transactions((("transactions", "inputs", id="transaction-input-ch2")))((("transactions", "outputs", id="transaction-output-ch2")))((("inputs", id="input")))((("outputs", id="output"))) are like lines in a double-entry
 bookkeeping ledger.  Each transaction contains one or more _inputs_,
 which spend funds. On the other side of
 the transaction, there are one or more _outputs_, which receive funds.
@@ -182,7 +182,7 @@ bitcoins (inputs) whose value is being spent, in the form of a digital
 signature from the owner, which can be independently validated by
 anyone. In Bitcoin terms, spending
 is signing a transaction that transfers value from a previous
-transaction over to a new owner identified by a Bitcoin ((("transactions", "inputs", startref="transaction-input")))((("transactions", "outputs", startref="transaction-output")))((("inputs", startref="input")))((("outputs", startref="output")))address.
+transaction over to a new owner identified by a Bitcoin ((("transactions", "inputs", startref="transaction-input-ch2")))((("transactions", "outputs", startref="transaction-output-ch2")))((("inputs", startref="input")))((("outputs", startref="output")))address.
 
 [[transaction-double-entry]]
 .Transaction as double-entry bookkeeping