diff --git a/ch04.asciidoc b/ch04.asciidoc
index 5da2d776..ac43a159 100644
--- a/ch04.asciidoc
+++ b/ch04.asciidoc
@@ -332,6 +332,7 @@ Let's look at the complete process of creating a bitcoin address, from a private
 [[addr_example]]
 .Creating a Base58Check-encoded bitcoin address from a private key
 ====
+[role="c_less_space"]
 [source, cpp]
 ----
 include::code/addr.cpp[]