diff --git a/lib/pynput/mouse/_darwin.py b/lib/pynput/mouse/_darwin.py
index 7ef44a13..d1e27a3d 100644
--- a/lib/pynput/mouse/_darwin.py
+++ b/lib/pynput/mouse/_darwin.py
@@ -193,10 +193,10 @@ def _handle(self, dummy_proxy, event_type, event, dummy_refcon):
         elif event_type == Quartz.kCGEventScrollWheel:
             dx = Quartz.CGEventGetIntegerValueField(
                 event,
-                Quartz.kCGScrollWheelEventDeltaAxis2)
+                Quartz.kCGScrollWheelEventPointDeltaAxis2)
             dy = Quartz.CGEventGetIntegerValueField(
                 event,
-                Quartz.kCGScrollWheelEventDeltaAxis1)
+                Quartz.kCGScrollWheelEventPointDeltaAxis1)
             self.on_scroll(px, py, dx, dy)
 
         else: