diff --git a/os/windows/snmp/mode/swap.pm b/os/windows/snmp/mode/swap.pm
index caca5683e..3c70c0cdc 100644
--- a/os/windows/snmp/mode/swap.pm
+++ b/os/windows/snmp/mode/swap.pm
@@ -148,6 +148,11 @@ Threshold warning in percent.
 
 Threshold critical in percent.
 
+=item B<--real-swap>
+
+Use this option to remove physical
+memory from Windows SNMP swap values.
+
 =back
 
 =cut