diff --git a/cookbook/configuration/web_server_configuration.rst b/cookbook/configuration/web_server_configuration.rst
index b498d155088..bdd1644f0f0 100644
--- a/cookbook/configuration/web_server_configuration.rst
+++ b/cookbook/configuration/web_server_configuration.rst
@@ -41,6 +41,12 @@ are:
     ``AllowOverride None`` and implement the rewrite rules in the ``web/.htaccess``
     into the virtualhost config.
 
+If you are using **php-cgi**, Apache does not pass HTTP basic username and
+password to PHP by default. To work around this limitation, you should use the
+following configuration snippet:
+
+    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+
 Nginx
 -----