diff --git a/AppKit/CPTableHeaderView.j b/AppKit/CPTableHeaderView.j
index 3155ae5c7..1ffcf2334 100644
--- a/AppKit/CPTableHeaderView.j
+++ b/AppKit/CPTableHeaderView.j
@@ -643,7 +643,7 @@ var _CPTableColumnHeaderViewStringValueKey = @"_CPTableColumnHeaderViewStringVal
         columnMaxX = _CGRectGetMaxX(columnToStroke);
 
         CGContextMoveToPoint(context, FLOOR(columnMaxX) - 0.5, ROUND(_CGRectGetMinY(columnToStroke)));
-        CGContextAddLineToPoint(context, FLOOR(columnMaxX) - 0.5, ROUND(_CGRectGetMaxY(columnToStroke)));
+        CGContextAddLineToPoint(context, FLOOR(columnMaxX) - 0.5, ROUND(_CGRectGetMaxY(columnToStroke)) - 1.0);
     }
     CGContextClosePath(context);
     CGContextStrokePath(context);
diff --git a/AppKit/_CPCornerView.j b/AppKit/_CPCornerView.j
index c68d8d4f5..27df6c25c 100644
--- a/AppKit/_CPCornerView.j
+++ b/AppKit/_CPCornerView.j
@@ -46,7 +46,7 @@
     CGContextSetStrokeColor(context, [self currentValueForThemeAttribute:@"divider-color"]);
 
     CGContextMoveToPoint(context, _CGRectGetMinX(aRect) + 0.5, ROUND(_CGRectGetMinY(aRect)));
-    CGContextAddLineToPoint(context, _CGRectGetMinX(aRect) + 0.5, ROUND(_CGRectGetMaxY(aRect)));
+    CGContextAddLineToPoint(context, _CGRectGetMinX(aRect) + 0.5, ROUND(_CGRectGetMaxY(aRect)) - 1.0);
 
     CGContextClosePath(context);
     CGContextStrokePath(context);