diff --git a/meson_options.txt b/meson_options.txt
index 7979edc1..e4c8ec47 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,6 +1,6 @@
 option('udev-dir',
        type: 'string',
-       default: '',
+       value: '',
        description: 'udev base directory [default=$prefix/lib/udev]')
 
 option('enable-tests',
@@ -10,10 +10,10 @@ option('enable-tests',
 
 option('systemd-unit-dir',
 	type : 'string',
-	default : '',
+	value : '',
 	description : 'systemd unit directory [default=$libdir/systemd/system]')
 
 option('dbus-root-dir',
 	type : 'string',
-	default : '',
+	value : '',
 	description : 'dbus service directory [default=$datadir/dbus-1]')