diff --git a/ch09_fees.adoc b/ch09_fees.adoc
index a4524984..5195c1c9 100644
--- a/ch09_fees.adoc
+++ b/ch09_fees.adoc
@@ -391,7 +391,7 @@ they're attempting to mine, up to the maximum size (weight) allowed to
 be included in a block.  To find even more packages that might be
 profitable to mine, the miner can evaluate packages across multiple
 generations (e.g., an unconfirmed parent transaction being combined with
-both its child and grandchild).  This is ((("ancestor fee rate mining")))called _ancestor fee rate
+both its child and grandchild).  This is ((("ancestor fee rate mining")))((("CPFP (child pays for parent) fee bumping", "ancestor fee rate mining")))called _ancestor fee rate
 mining_.
 
 Bitcoin Core has implemented ancestor fee rate mining for many years,