--- a/xml/en/docs/http/ngx_http_log_module.xml
+++ b/xml/en/docs/http/ngx_http_log_module.xml
@@ -10,7 +10,7 @@
 <module name="Module ngx_http_log_module"
         link="/en/docs/http/ngx_http_log_module.html"
         lang="en"
-        rev="4">
+        rev="5">
 
 <section id="summary">
 
@@ -167,6 +167,10 @@ name</link>.
 <tag-name><var>$msec</var></tag-name>
 <tag-desc>
 time in seconds with a milliseconds resolution at the time of log write
+<note>
+Since version 1.3.9 there is a common variable with the
+<link doc="ngx_http_core_module.xml" id="var_msec">same name</link>.
+</note>
 </tag-desc>
 
 <tag-name><var>$pipe</var></tag-name>
@@ -185,6 +189,10 @@ request length (including request line, 
 request processing time in seconds with a milliseconds resolution;
 time elapsed between the first bytes were read from the client and
 the log write after the last bytes were sent to the client
+<note>
+Since version 1.3.9 there is a common variable with the
+<link doc="ngx_http_core_module.xml" id="var_request_time">same name</link>.
+</note>
 </tag-desc>
 
 <tag-name><var>$status</var></tag-name>