diff --git a/doc/man1/rigctl.1 b/doc/man1/rigctl.1
index 771051601..db4535e2e 100644
--- a/doc/man1/rigctl.1
+++ b/doc/man1/rigctl.1
@@ -81,8 +81,7 @@ Use
 .I device
 as the file name of the port connected to the radio.
 .IP
-Often a serial port, but could be a USB to serial adapter.  Typically
-.IR /dev/ttyS0 ", " /dev/ttyS1 ", " /dev/ttyUSB0 ,
+Typically /dev/ttyS0 ", " /dev/ttyS1 ", " /dev/ttyUSB0 ,
 etc. on Linux,
 .IR COM1 ", " COM2 ,
 etc. on MS Windows.  The BSD flavors and Mac OS/X have their own designations.
diff --git a/doc/man1/rigctld.1 b/doc/man1/rigctld.1
index 56b08109b..fa8277a4e 100644
--- a/doc/man1/rigctld.1
+++ b/doc/man1/rigctld.1
@@ -127,8 +127,7 @@ Use
 .I device
 as the file name of the port connected to the radio.
 .IP
-Often a serial port, but could be a USB to serial adapter.  Typically
-.IR /dev/ttyS0 ", " /dev/ttyS1 ", " /dev/ttyUSB0 ,
+Typically /dev/ttyS0 ", " /dev/ttyS1 ", " /dev/ttyUSB0 ,
 etc. on Linux,
 .IR COM1 ", " COM2 ,
 etc. on MS Windows.  The BSD flavors and Mac OS/X have their own designations.