diff --git a/share/examples/etc/make.conf b/share/examples/etc/make.conf
index d0550942948..a0d269e3937 100644
--- a/share/examples/etc/make.conf
+++ b/share/examples/etc/make.conf
@@ -150,11 +150,10 @@
 # be OK to use for any non-commercial use.  This is optional.
 #MAKE_IDEA=	YES	# IDEA (128 bit symmetric encryption)
 #
-# To avoid running MAKEDEV all on /dev during install set NO_MAKEDEV_RUN.
-# If you don't want to install MAKEDEV set NO_MAKEDEV_INSTALL, this implies
-# NO_MAKEDEV_RUN.
-#NO_MAKEDEV_INSTALL=	true
-#NO_MAKEDEV_RUN=	true
+# If you want to install MAKEDEV set MAKEDEV_INSTALL.
+# To run MAKEDEV all on /dev during install set MAKEDEV_RUN.
+#MAKEDEV_INSTALL=	true
+#MAKEDEV_RUN=	true
 #
 # If you do not want unformatted manual pages to be compressed
 # when they are installed:
diff --git a/share/man/man5/make.conf.5 b/share/man/man5/make.conf.5
index c99f941df2f..0cc21367ae4 100644
--- a/share/man/man5/make.conf.5
+++ b/share/man/man5/make.conf.5
@@ -391,18 +391,18 @@ and related programs.
 Set to not build the
 .Xr mailwrapper 8
 MTA selector.
-.It Va NO_MAKEDEV_INSTALL
+.It Va MAKEDEV_INSTALL
 .Pq Vt bool
-Set to avoid installing
+Set to install
 .Pa MAKEDEV
 in
 .Pa /dev .
-This implies the
-.Va NO_MAKEDEV_RUN
-variable.
-.It Va NO_MAKEDEV_RUN
+This is needed for the
+.Va MAKEDEV_RUN
+variable to have an effect.
+.It Va MAKEDEV_RUN
 .Pq Vt bool
-Set to avoid running
+Set to run
 .Dq Li "MAKEDEV all"
 on
 .Pa /dev