diff --git a/layout/generic/nsFrame.cpp b/layout/generic/nsFrame.cpp
index 2cf5e94deed1..7e20c0a35c21 100644
--- a/layout/generic/nsFrame.cpp
+++ b/layout/generic/nsFrame.cpp
@@ -3600,7 +3600,7 @@ nsIntRect nsIFrame::GetScreenRectExternal() const
 
 nsIntRect nsIFrame::GetScreenRect() const
 {
-  return nsRect::ToNearestPixels(GetScreenRectInAppUnits(), PresContext()->AppUnitsPerDevPixel());
+  return nsRect::ToOutsidePixels(GetScreenRectInAppUnits(), PresContext()->AppUnitsPerDevPixel());
 }
 
 // virtual