diff --git a/DS4Windows/DS4Control/Mouse.cs b/DS4Windows/DS4Control/Mouse.cs
index d21c15d..911413e 100644
--- a/DS4Windows/DS4Control/Mouse.cs
+++ b/DS4Windows/DS4Control/Mouse.cs
@@ -421,7 +421,7 @@ namespace DS4Windows
             if (!Global.UseTPforControls[deviceNum])
             {
                 Array.Clear(trackballXBuffer, 0, TRACKBALL_BUFFER_LEN);
-                Array.Clear(trackballXBuffer, 0, TRACKBALL_BUFFER_LEN);
+                Array.Clear(trackballYBuffer, 0, TRACKBALL_BUFFER_LEN);
                 trackballXVel = 0.0;
                 trackballYVel = 0.0;
                 trackballActive = false;