diff --git a/sys/man/8/plan9.ini b/sys/man/8/plan9.ini
index fab498f30..00eee85be 100644
--- a/sys/man/8/plan9.ini
+++ b/sys/man/8/plan9.ini
@@ -385,18 +385,6 @@ Intersil Prism 2.5 chipset.
 (S)ATA controllers are autodetected.
 .SS \fL*nodma=\fP
 disable DMA on ata devices.
-.SS \fLusbX=type=uhci\fP
-.SS \fLusbX=type=ohci\fP
-This specifies the settings for a USB UHCI or OHCI controller.
-Like the Ethernet controllers, USB controllers are autodetected
-after scanning for the ones listed in
-.IR plan9.ini .
-Thus, most systems will not need a
-.B usbX
-line.
-Also like the Ethernet controllers, USB autoprobing can be
-disabled by specifying the line
-.BR *nousbprobe= .
 .SS \fLscsiX=value\fP
 This defines a SCSI interface which cannot be automatically detected
 by the kernel.