diff --git a/AppKit/CPSegmentedControl.j b/AppKit/CPSegmentedControl.j
index c2dd3a21f..77968d693 100644
--- a/AppKit/CPSegmentedControl.j
+++ b/AppKit/CPSegmentedControl.j
@@ -561,10 +561,11 @@ CPSegmentSwitchTrackingMomentary = 2;
     }
     else if (aName === "right-segment-bezel")
     {
-        return CGRectMake(CGRectGetWidth([self bounds]) - contentInset.right,
-                            bezelInset.top,
-                            contentInset.right,
-                            height);
+        // we have to FLOOR the coordinates to prevent a 1px glitch in Safari
+        return CGRectMake(FLOOR(CGRectGetWidth([self bounds]) - contentInset.right),
+                          FLOOR(bezelInset.top),
+                          FLOOR(contentInset.right),
+                          FLOOR(height));
     }
     else if (aName.indexOf("segment-bezel") === 0)
     {