diff --git a/share/man/man4/umass.4 b/share/man/man4/umass.4
index d98a2166ed6..d530d2173f2 100644
--- a/share/man/man4/umass.4
+++ b/share/man/man4/umass.4
@@ -101,7 +101,7 @@ driver to the kernel.
 .Pp
 Rescan a Zip drive that was added after boot.
 The command above
-assumes that the Zip drive is the first SCSI bus in the system.
+assumes that the Zip drive is on the first SCSI bus in the system.
 .Bd -literal -offset indent
 camcontrol rescan 0:0:0
 camcontrol rescan 0:0:1