--- a/xml/en/docs/http/ngx_http_core_module.xml
+++ b/xml/en/docs/http/ngx_http_core_module.xml
@@ -10,7 +10,7 @@
 <module name="Module ngx_http_core_module"
         link="/en/docs/http/ngx_http_core_module.html"
         lang="en"
-        rev="24">
+        rev="25">
 
 <section id="directives" name="Directives">
 
@@ -1816,6 +1816,21 @@ optimization needs to be disabled.
 </directive>
 
 
+<directive name="output_buffers">
+<syntax><value>number</value> <value>size</value></syntax>
+<default>1 32k</default>
+<context>http</context>
+<context>server</context>
+<context>location</context>
+
+<para>
+Sets the <value>number</value> and <value>size</value> of
+buffers used for reading a response from a disk.
+</para>
+
+</directive>
+
+
 <directive name="port_in_redirect">
 <syntax><literal>on</literal> | <literal>off</literal></syntax>
 <default>on</default>