--- a/doc/book/en/C030-instance-config.en.txt	Mon Dec 29 11:16:49 2008 -0800
+++ b/doc/book/en/C030-instance-config.en.txt	Mon Dec 29 13:50:42 2008 -0800
@@ -14,7 +14,7 @@
 
 It is a simple text file format INI. In the following description,
 each option name is prefixed with its own section and followed by its
-default value if necessarry, e.g. "`<section>.<option>` [value]."
+default value if necessary, e.g. "`<section>.<option>` [value]."
 
 
 Configuring the Web server