diff --git a/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp b/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp
index 32fd8c19b07..e2f4838880d 100644
--- a/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp
+++ b/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp
@@ -634,7 +634,8 @@ nsBrowserWindow::DispatchMenuItem(PRInt32 aID)
                                      kIWalletServiceIID,
                                      (nsISupports **)&walletservice);
   if ((NS_OK == res) && (nsnull != walletservice)) {
-    res = walletservice->WALLET_Prefill(shell, (PRVCY_QPREFILL == aID));
+    nsString urlString = nsString("");
+    res = walletservice->WALLET_Prefill(shell, urlString, (PRVCY_QPREFILL == aID));
     NS_RELEASE(walletservice);
   }