diff --git a/mozilla/intl/uconv/public/nsICharsetAlias.h b/mozilla/intl/uconv/public/nsICharsetAlias.h
index 35be2d0c165..4588baa08ac 100644
--- a/mozilla/intl/uconv/public/nsICharsetAlias.h
+++ b/mozilla/intl/uconv/public/nsICharsetAlias.h
@@ -39,7 +39,7 @@
 #define nsICharsetAlias_h___
 
 #include "nscore.h"
-#include "nsString.h"
+#include "nsStringGlue.h"
 #include "nsISupports.h"
 
 /* 0b4028d6-7473-4958-9b3c-4dee46bf68cb */
diff --git a/mozilla/intl/uconv/public/nsIPlatformCharset.h b/mozilla/intl/uconv/public/nsIPlatformCharset.h
index 08091eef814..35d8b2379f4 100644
--- a/mozilla/intl/uconv/public/nsIPlatformCharset.h
+++ b/mozilla/intl/uconv/public/nsIPlatformCharset.h
@@ -38,7 +38,7 @@
 #ifndef nsIPlatformCharset_h__
 #define nsIPlatformCharset_h__
 
-#include "nsString.h"
+#include "nsStringGlue.h"
 #include "nsISupports.h"
 
 // Interface ID for our nsIPlatformCharset interface