diff --git a/widget/src/cocoa/nsChildView.mm b/widget/src/cocoa/nsChildView.mm
index 609b6fd88ce..0ddc579b2dc 100644
--- a/widget/src/cocoa/nsChildView.mm
+++ b/widget/src/cocoa/nsChildView.mm
@@ -3696,7 +3696,7 @@ static PRBool IsSpecialGeckoKey(UInt32 macKeyCode)
   
   if (outGeckoEvent->message == NS_KEY_PRESS && !outGeckoEvent->isMeta && outGeckoEvent->keyCode != NS_VK_PAGE_UP && 
       outGeckoEvent->keyCode != NS_VK_PAGE_DOWN)
-    ::ObscureCursor();
+    [NSCursor setHiddenUntilMouseMoves:YES];
 }