--- a/doc/book/en/C030-instance-config.en.txt	Thu Dec 18 17:39:14 2008 +0100
+++ b/doc/book/en/C030-instance-config.en.txt	Thu Dec 18 10:27:57 2008 -0800
@@ -39,7 +39,7 @@
 ```````````````````
 It is possible to make a site accessible for anonymous http connections
 and https for authenticated users. This requires to
-use apache (by example) for redirection and the variable `main.https-url`
+use apache (for example) for redirection and the variable `main.https-url`
 of configuration file.
 
 :Example: