diff --git a/mozilla/layout/base/public/nsISelection.h b/mozilla/layout/base/public/nsISelection.h
index 664ce672962..552c4326d95 100644
--- a/mozilla/layout/base/public/nsISelection.h
+++ b/mozilla/layout/base/public/nsISelection.h
@@ -19,7 +19,7 @@
 #define nsISelection_h___
 
 #include "nsSelectionRange.h"
-#include "nsLayout.h"
+#include "nslayout.h"
 #include "nsISupports.h"
 
 // IID for the nsISelection interface