diff --git a/etc/defaults/make.conf b/etc/defaults/make.conf
index 0174a647eb20..e4f26d9a6c0a 100644
--- a/etc/defaults/make.conf
+++ b/etc/defaults/make.conf
@@ -1,4 +1,4 @@
-# $Id: make.conf,v 1.23 1995/09/30 17:20:27 ache Exp $
+# $Id: make.conf,v 1.24 1996/01/05 18:54:07 ache Exp $
 #
 # This file, if present, will be read by make (see /usr/share/mk/sys.mk).
 # It allows you to override macro definitions to make without changing
@@ -45,9 +45,10 @@
 #PRINTER=	ps
 #
 #
-# How many times to check if a key has been pressed before giving up and
-# booting the default kernel. 0 actually means check once, but saves the
-# loop overhead. This value is approximately in milliseconds.
+# How long to wait for a console keypress before booting the default kernel.
+# This value is approximately in milliseconds. Keypresses are accepted by the
+# BIOS before booting from disk, making it possible to give custom boot
+# parameters even when this is set to 0.
 #
 #BOOTWAIT=0
 #BOOTWAIT=30000
diff --git a/etc/make.conf b/etc/make.conf
index 0174a647eb20..e4f26d9a6c0a 100644
--- a/etc/make.conf
+++ b/etc/make.conf
@@ -1,4 +1,4 @@
-# $Id: make.conf,v 1.23 1995/09/30 17:20:27 ache Exp $
+# $Id: make.conf,v 1.24 1996/01/05 18:54:07 ache Exp $
 #
 # This file, if present, will be read by make (see /usr/share/mk/sys.mk).
 # It allows you to override macro definitions to make without changing
@@ -45,9 +45,10 @@
 #PRINTER=	ps
 #
 #
-# How many times to check if a key has been pressed before giving up and
-# booting the default kernel. 0 actually means check once, but saves the
-# loop overhead. This value is approximately in milliseconds.
+# How long to wait for a console keypress before booting the default kernel.
+# This value is approximately in milliseconds. Keypresses are accepted by the
+# BIOS before booting from disk, making it possible to give custom boot
+# parameters even when this is set to 0.
 #
 #BOOTWAIT=0
 #BOOTWAIT=30000
diff --git a/share/examples/etc/make.conf b/share/examples/etc/make.conf
index 0174a647eb20..e4f26d9a6c0a 100644
--- a/share/examples/etc/make.conf
+++ b/share/examples/etc/make.conf
@@ -1,4 +1,4 @@
-# $Id: make.conf,v 1.23 1995/09/30 17:20:27 ache Exp $
+# $Id: make.conf,v 1.24 1996/01/05 18:54:07 ache Exp $
 #
 # This file, if present, will be read by make (see /usr/share/mk/sys.mk).
 # It allows you to override macro definitions to make without changing
@@ -45,9 +45,10 @@
 #PRINTER=	ps
 #
 #
-# How many times to check if a key has been pressed before giving up and
-# booting the default kernel. 0 actually means check once, but saves the
-# loop overhead. This value is approximately in milliseconds.
+# How long to wait for a console keypress before booting the default kernel.
+# This value is approximately in milliseconds. Keypresses are accepted by the
+# BIOS before booting from disk, making it possible to give custom boot
+# parameters even when this is set to 0.
 #
 #BOOTWAIT=0
 #BOOTWAIT=30000