diff --git a/mozilla/extensions/wallet/src/singsign.cpp b/mozilla/extensions/wallet/src/singsign.cpp
index c8e416a865f..b565c651777 100644
--- a/mozilla/extensions/wallet/src/singsign.cpp
+++ b/mozilla/extensions/wallet/src/singsign.cpp
@@ -557,7 +557,7 @@ si_CheckGetUsernamePassword
   }
 
   PRBool confirmed = PR_FALSE;  
-  res = dialog->PromptUsernameAndPassword(dialogTitle,
+  res = dialog->PromptUsernameAndPassword(prompt_string,
                                           szMessage,
                                           username, password,
                                           check_string,