diff --git a/src/libinput.h b/src/libinput.h
index 8d347b9e..e2d83bf4 100644
--- a/src/libinput.h
+++ b/src/libinput.h
@@ -363,9 +363,9 @@ libinput_event_pointer_get_time(
 /**
  * @ingroup event_pointer
  *
- * Return the delta between the last event and the current event. The axis'
- * positive direction is device-specific. For pointer events that are
- * not of type LIBINPUT_EVENT_POINTER_MOTION, this function returns 0.
+ * Return the delta between the last event and the current event. For pointer
+ * events that are not of type LIBINPUT_EVENT_POINTER_MOTION, this function
+ * returns 0.
  *
  * @note It is an application bug to call this function for events other than
  * LIBINPUT_EVENT_POINTER_MOTION.
@@ -379,9 +379,9 @@ libinput_event_pointer_get_dx(
 /**
  * @ingroup event_pointer
  *
- * Return the delta between the last event and the current event. The
- * axis' positive direction is device-specific. For pointer events that are
- * not of type LIBINPUT_EVENT_POINTER_MOTION, this function returns 0.
+ * Return the delta between the last event and the current event. For pointer
+ * events that are not of type LIBINPUT_EVENT_POINTER_MOTION, this function
+ * returns 0.
  *
  * @note It is an application bug to call this function for events other than
  * LIBINPUT_EVENT_POINTER_MOTION.