diff --git a/mozilla/xpcom/ds/nsProperties.cpp b/mozilla/xpcom/ds/nsProperties.cpp
index f0d83fbfbf7..bf23690b9bf 100644
--- a/mozilla/xpcom/ds/nsProperties.cpp
+++ b/mozilla/xpcom/ds/nsProperties.cpp
@@ -233,7 +233,12 @@ nsPersistentProperties::Load(nsIInputStream *aIn)
   PRInt32  c;
   nsresult ret;
 
+#if 1
+  nsString utf8("UTF-8");
+  ret = NS_NewConverterStream(&mIn, nsnull, aIn, 0, &utf8);
+#else
   ret = NS_NewConverterStream(&mIn, nsnull, aIn);
+#endif
   if (ret != NS_OK) {
 #ifdef NS_DEBUG
     cout << "NS_NewConverterStream failed" << endl;