diff --git a/mozilla/gfx/src/gtk/nsRenderingContextGTK.h b/mozilla/gfx/src/gtk/nsRenderingContextGTK.h
index 3d40dd68ed8..95bad6ee95e 100644
--- a/mozilla/gfx/src/gtk/nsRenderingContextGTK.h
+++ b/mozilla/gfx/src/gtk/nsRenderingContextGTK.h
@@ -42,7 +42,7 @@
 
 #include <gtk/gtk.h>
 
-#define USE_NATIVE_TILING 1
+//#define USE_NATIVE_TILING 1
 
 class nsRenderingContextGTK : public nsRenderingContextImpl
 {