diff --git a/src/libratbag.h b/src/libratbag.h
index 24c3416a..5cdb52fc 100644
--- a/src/libratbag.h
+++ b/src/libratbag.h
@@ -463,7 +463,7 @@ enum ratbag_button_type {
 	RATBAG_BUTTON_TYPE_RESOLUTION_DOWN,
 	RATBAG_BUTTON_TYPE_WHEEL_LEFT,
 	RATBAG_BUTTON_TYPE_WHEEL_RIGHT,
-	RATBAG_BUTTON_TYPE_WHEEL_CLICK, /* FIXME: same as wheel click? */
+	RATBAG_BUTTON_TYPE_WHEEL_CLICK, /* FIXME: same as middle click? */
 };
 
 /**