diff --git a/ch09.asciidoc b/ch09.asciidoc
index f17f3cf4..0bafd2f5 100644
--- a/ch09.asciidoc
+++ b/ch09.asciidoc
@@ -283,7 +283,7 @@ Namecoin's basic parameters are the same as bitcoin's:
 * Consensus algorithm: SHA256 proof of work
 * Market capitalization: $10 million in mid-2014
 
-Namecoin's namespaces are not restricted, and anyone can use any namespace in any way. However, certain namespaces have an agreed-upon specification so that when it is read from the blockchain, software knows how to read and proceed from there. If it is malformed, then whatever software you used to read from the specific namespace will throw an error. Some of the popular namespaces are:
+Namecoin's namespaces are not restricted, and anyone can use any namespace in any way. However, certain namespaces have an agreed-upon specification so that when it is read from the blockchain, application-level software knows how to read and proceed from there. If it is malformed, then whatever software you used to read from the specific namespace will throw an error. Some of the popular namespaces are:
 
 * +d/+ is the domain-name namespace for +.bit+ domains
 * +id/+ is the namespace for storing person identifiers such as email addresses, PGP keys, and so on