diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index 93548d759d..8d883d607b 100644
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -3869,6 +3869,9 @@ geoip org "Internet Systems Consortium";
only uses two arguments to the openlog() function,
then this clause is silently ignored.
+
+ On Windows machines syslog messages are directed to the EventViewer.
+
The severity clause works like syslog's
"priorities", except that they can also be used if you are writing