diff --git a/ch02_overview.adoc b/ch02_overview.adoc
index 49e870d9..73f8c5cc 100644
--- a/ch02_overview.adoc
+++ b/ch02_overview.adoc
@@ -14,6 +14,7 @@ transactions, the network, and mining.
 
 === Bitcoin Overview
 
+[role="fix_tracking"]
 The ((("Bitcoin", "operational overview", id="bitcoin-operational-overview-ch2")))((("blockchain explorers", id="blockchain-explorers")))Bitcoin system consists of users with wallets containing keys,
 transactions that are propagated across the network, and miners who
 produce (through competitive computation) the consensus blockchain,