diff --git a/ch10.asciidoc b/ch10.asciidoc
index ec139498..86d98b1c 100644
--- a/ch10.asciidoc
+++ b/ch10.asciidoc
@@ -948,7 +948,7 @@ Once a miner using the new rules mines a block, the mining power and chain will
 
 ==== Diverging Miners and Difficulty
 
-As miners diverge into mining two different chains, the hashing power is split between the chains. The mining power can be split in any proportion between the two chains. The new rules may only be followed by a minority, or by the vast majority of the mining power.
+((("forks", "changing consensus rules", "diverging miners and difficulty")))As miners diverge into mining two different chains, the hashing power is split between the chains. The mining power can be split in any proportion between the two chains. The new rules may only be followed by a minority, or by the vast majority of the mining power.
 
 Let's assume, for example, an 80%-20% split, with the majority of the mining power using the new consensus rules. Let's also assume that the fork occurs immediately after a retargetting period.