diff --git a/ch06_transactions.adoc b/ch06_transactions.adoc
index a7573b5b..56effd0a 100644
--- a/ch06_transactions.adoc
+++ b/ch06_transactions.adoc
@@ -190,7 +190,7 @@ encoded as a compactSize unsigned integer.
 
 .CompactSize Unsigned Integers
 ****
-Unsigned integers in Bitcoin that often have low values, but which may
+Unsigned integers((("compactSize  unsigned integers", id="compactsize")))((("unsigned integers", id="unsigned"))) in Bitcoin that often have low values, but which may
 sometimes have high values, are usually encoded using the compactSize
 data type.  CompactSize is a version of a variable-length integer, so
 it's sometimes called var_int or varint (see, for example, documentation
@@ -207,7 +207,7 @@ nBits field in a Bitcoin block header is encoded using a custom data
 type known as +Compact+, which is unrelated to compactSize.  When
 talking about the variable length integers used in Bitcoin transaction
 serialization and other parts of the Bitcoin P2P protocol, we will
-always use the full name compactSize.
+always use the full name((("compactSize  unsigned integers", startref="compactsize")))((("unsigned integers", startref="unsigned"))) compactSize.
 ====
 
 For numbers from 0 to 252, compactSize unsigned integers are identical