diff --git a/usr.sbin/ancontrol/ancontrol.8 b/usr.sbin/ancontrol/ancontrol.8
index c038bc1d8707..fe0dfa73f244 100644
--- a/usr.sbin/ancontrol/ancontrol.8
+++ b/usr.sbin/ancontrol/ancontrol.8
@@ -402,7 +402,7 @@ by regional authorities.
 Recognized regulatory authorities include
 the FCC (United States), ETSI (Europe), France and Japan.
 Frequencies
-in the table are specified in Mhz.
+in the table are specified in MHz.
 .Bl -column ".Em Channel ID" ".Em FCC" ".Em ETSI" ".Em France" ".Em Japan" -offset indent
 .Em "Channel ID	FCC	ETSI	France	Japan"
 .It Cm 1 Ta 2412 Ta 2412 Ta - Ta -
diff --git a/usr.sbin/sicontrol/sicontrol.8 b/usr.sbin/sicontrol/sicontrol.8
index aa56df30f4a2..d2a85c62577a 100644
--- a/usr.sbin/sicontrol/sicontrol.8
+++ b/usr.sbin/sicontrol/sicontrol.8
@@ -39,7 +39,7 @@ The maximum number of host adapter interrupts per second is determined by:
 .Ar "controller CPU clock / (8 * int_throttle)"
 .Pp
 The default value at boot time is 25000.  The host adapter cpu clock is
-25Mhz.  This gives a maximum interrupt rate of about 125 interrupts per
+25MHz.  This gives a maximum interrupt rate of about 125 interrupts per
 second.
 .Pp
 Lowering this value will increase the rate in which the host adapter can
diff --git a/usr.sbin/wicontrol/wicontrol.8 b/usr.sbin/wicontrol/wicontrol.8
index 260b3933009e..8c7a09a7ec36 100644
--- a/usr.sbin/wicontrol/wicontrol.8
+++ b/usr.sbin/wicontrol/wicontrol.8
@@ -349,7 +349,7 @@ by regional authorities.
 Recognized regulatory authorities include
 the FCC (United States), ETSI (Europe), France and Japan.
 Frequencies
-in the table are specified in Mhz.
+in the table are specified in MHz.
 .Bl -column ".Em Channel\ ID" ".Em FCC" ".Em ETSI" ".Em France" ".Em Japan" -offset indent
 .Em "Channel ID	FCC	ETSI	France	Japan"
 .It Cm 1 Ta "2412	2412	-	2412"