diff --git a/AppKit/CPScrollView.j b/AppKit/CPScrollView.j
index 24c78e207..f30846f2a 100644
--- a/AppKit/CPScrollView.j
+++ b/AppKit/CPScrollView.j
@@ -310,7 +310,7 @@
 
     if (shouldShowVerticalScroller)
     {
-        var verticalScrollerY = MAX(_CGRectGetMaxY([self _cornerViewFrame]), headerClipViewHeight),
+        var verticalScrollerY = MAX(_CGRectGetMaxY([self _cornerViewFrame]), headerClipViewHeight + 1.0),
             verticalScrollerHeight = _CGRectGetMaxY(contentFrame) - verticalScrollerY;
 
         [_verticalScroller setFloatValue:(difference.height <= 0.0) ? 0.0 : scrollPoint.y / difference.height];