diff --git a/README.md b/README.md
index 0ef3a94b..401dbec7 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,8 @@ GLFW bundles a number of dependencies in the `deps/` directory.
                    bit field was unchanged
  - [Cocoa] Bugfix: Joystick enumeration took hundreds of ms on some systems
  - [Cocoa] Bugfix: The cursor was hidden when the user resized a GLFW window
+ - [Cocoa] Bugfix: The X-axis scroll offsets were inverted relative to the
+                   Windows and X11 ports
  - [Win32] Enabled generation of pkg-config file for MinGW
  - [Win32] Removed option to require explicitly linking against `winmm.dll`
  - [Win32] Bugfix: Failure to load winmm or its functions was not reported to
diff --git a/src/cocoa_window.m b/src/cocoa_window.m
index ae82d8ca..463c02c6 100644
--- a/src/cocoa_window.m
+++ b/src/cocoa_window.m
@@ -683,7 +683,12 @@ static int translateKey(unsigned int key)
     }
 
     if (fabs(deltaX) > 0.0 || fabs(deltaY) > 0.0)
-        _glfwInputScroll(window, deltaX, deltaY);
+    {
+        // NOTE: The X-axis is inverted for consistency with Windows and X11.
+        //       Natural scrolling inverts both axes, making it consistent with
+        //       the similarly named feature on modern X11 desktop systems.
+        _glfwInputScroll(window, -deltaX, deltaY);
+    }
 }
 
 - (void)resetCursorRects