diff --git a/src/mac/carbon/toplevel.cpp b/src/mac/carbon/toplevel.cpp
index e176c02796..a665917aed 100644
--- a/src/mac/carbon/toplevel.cpp
+++ b/src/mac/carbon/toplevel.cpp
@@ -1219,7 +1219,9 @@ void  wxTopLevelWindowMac::MacCreateRealWindow(
     // the root control level handler
     MacInstallEventHandler( (WXWidget) m_peer->GetControlRef() ) ;
 
-#if TARGET_API_MAC_OSX
+    // Causes the inner part of the window not to be metal
+    // if the style is used before window creation.
+#if 0 // TARGET_API_MAC_OSX
     if ( m_macUsesCompositing && m_macWindow != NULL )
     {
         if ( GetExtraStyle() & wxFRAME_EX_METAL )