diff --git a/view/src/nsViewFactory.cpp b/view/src/nsViewFactory.cpp
index d2f7dd492fb..7ade3a32f6d 100644
--- a/view/src/nsViewFactory.cpp
+++ b/view/src/nsViewFactory.cpp
@@ -109,7 +109,8 @@ nsresult nsViewFactory::LockFactory(PRBool aLock)
   return NS_OK;
 }
 
-#define USE_NEW_COMPOSITOR 1
+//Uncomment the following line to go back to the "new" compositor.
+//#define USE_NEW_COMPOSITOR 1
 
 #if USE_NEW_COMPOSITOR
 #include "nsViewManager.h"