diff --git a/ch14_applications.adoc b/ch14_applications.adoc
index 77ee566e..e47b5148 100644
--- a/ch14_applications.adoc
+++ b/ch14_applications.adoc
@@ -197,7 +197,7 @@ coins are to be spent.  That brings us to _pay to contract (P2C)_.
 We ((("colored coins application", "P2C (pay to contract)", id="color-coin-p2c")))((("P2C (pay to contract)", id="p2c-color-coin")))previously learned about P2C in <<pay_to_contract>>, where it became
 part of the basis for the taproot upgrade to Bitcoin's consensus rules.
 As a short reminder, P2C allows a spender (Bob) and receiver (Alice) to
-agree on some data, such as a contract, and then tweak Alice's public
+agree on some data, such as a contract, and then((("key tweaks"))) tweak Alice's public
 key so that it commits to the contract.  At any time, Bob can reveal
 Alice's underlying key and the tweak used to commit to the contract,
 proving that she received the funds.  If Alice spends the funds, that