diff --git a/meson.build b/meson.build
index 2a1b06c..57c25dc 100644
--- a/meson.build
+++ b/meson.build
@@ -19,6 +19,7 @@
 conf_data.set('SYSTEMD_TARGET', get_option('systemd_target'))
 conf_data.set('STRICT_FAILSAFE_PWM', get_option('strict-failsafe-pwm'))
 conf_data.set('OFFLINE_FAILSAFE_PWM', get_option('offline-failsafe-pwm'))
+conf_data.set('UNC_FAILSAFE', get_option('unc-failsafe'))
 
 configure_file(output: 'config.h',
     configuration: conf_data