diff --git a/vncviewer/vncviewer.man b/vncviewer/vncviewer.man
index e48a0c4..22b46cd 100644
--- a/vncviewer/vncviewer.man
+++ b/vncviewer/vncviewer.man
@@ -243,7 +243,7 @@
 .TP
 .B \-PointerEventInterval \fItime\fP
 Time in milliseconds to rate-limit successive pointer events. Default is
-to send events immediately.
+17 ms (60 Hz).
 .
 .TP
 .B \-Log \fIlogname\fP:\fIdest\fP:\fIlevel\fP