diff --git a/ch04.asciidoc b/ch04.asciidoc
index c5f554f1..e737d0d2 100644
--- a/ch04.asciidoc
+++ b/ch04.asciidoc
@@ -348,7 +348,7 @@ The private key can be represented in a number of different formats, all of whic
 
 Table 4-3 shows the private key generated earlier in these three formats.
 
-.Example: Same Key, Different Formats
+.Example: Same key, different formats
 [options="header"]
 |=======
 |Format | Private Key