diff --git a/widget/src/cocoa/nsNativeThemeCocoa.mm b/widget/src/cocoa/nsNativeThemeCocoa.mm
index 7c96b681b80e..bd1ec3b057a4 100644
--- a/widget/src/cocoa/nsNativeThemeCocoa.mm
+++ b/widget/src/cocoa/nsNativeThemeCocoa.mm
@@ -242,7 +242,7 @@ nsNativeThemeCocoa::DrawCellWithScaling(NSCell *cell,
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
 
-  NSRect drawRect = NSRectFromCGRect(destRect);
+  NSRect drawRect = NSMakeRect(destRect.origin.x, destRect.origin.y, destRect.size.width, destRect.size.height);
 
   CGAffineTransform savedCTM;