diff --git a/user_guide_src/source/general/urls.rst b/user_guide_src/source/general/urls.rst
index 2115376..3126fcf 100644
--- a/user_guide_src/source/general/urls.rst
+++ b/user_guide_src/source/general/urls.rst
@@ -45,12 +45,13 @@
 
 ::
 	
-	RewriteEngine on
-	RewriteCond $1 !^(index\.php|images|robots\.txt)
+	RewriteEngine On
+	RewriteCond %{REQUEST_FILENAME} !-f
+	RewriteCond %{REQUEST_FILENAME} !-d
 	RewriteRule ^(.*)$ /index.php/$1 [L]
 
-In the above example, any HTTP request other than those for index.php,
-images, and robots.txt is treated as a request for your index.php file.
+In the above example, any HTTP request other than those for existing
+directories and existing files is treated as a request for your index.php file.
 
 Adding a URL Suffix
 ===================