diff --git a/ch02_overview.adoc b/ch02_overview.adoc
index d6da59ef..e5492250 100644
--- a/ch02_overview.adoc
+++ b/ch02_overview.adoc
@@ -157,7 +157,7 @@ can spend that amount in subsequent transactions.
 
 === Bitcoin Transactions
 
-In simple terms, a transaction tells the
+In ((("transactions", "defined")))((("bitcoins", "transactions", see="transactions")))simple terms, a transaction tells the
 network that the owner of certain bitcoins has authorized the transfer
 of that value to another owner. The new owner can now spend the bitcoin
 by creating another transaction that authorizes the transfer to another