diff --git a/ch12_mining.adoc b/ch12_mining.adoc
index 3cfdacee..817eef5a 100644
--- a/ch12_mining.adoc
+++ b/ch12_mining.adoc
@@ -1076,6 +1076,8 @@ sequence, +CLTV+, and +CSV+.
 
 === Successfully Mining the Block
 
+++++
+<p class="fix_tracking">
 As
 we saw earlier, Jing's node has constructed a candidate block and
 prepared it for mining. Jing has several hardware mining rigs with
@@ -1089,7 +1091,8 @@ the nonce is only
 32 bits, after exhausting all the nonce possibilities (about 4 billion),
 the mining hardware changes the block header (adjusting the coinbase
 extra nonce space, versionbits, or timestamp) and resets the nonce counter, testing
-new combinations.
+new combinations.</p>
+++++
 
 Almost 11 minutes after starting to mine a particular block, one of the
 hardware mining machines finds a solution and sends it back to the