diff --git a/src/evdev.c b/src/evdev.c
index 918af8d6..57dcca76 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -39,6 +39,10 @@
 
 #define DEFAULT_AXIS_STEP_DISTANCE li_fixed_from_int(10)
 
+#ifndef KEY_LIGHTS_TOGGLE
+#define KEY_LIGHTS_TOGGLE 0x160
+#endif
+
 void
 evdev_device_led_update(struct evdev_device *device, enum libinput_led leds)
 {