diff --git a/mailnews/base/public/nsIMsgMessageService.idl b/mailnews/base/public/nsIMsgMessageService.idl
index 3e6c3d635ae..d484aa6aad8 100644
--- a/mailnews/base/public/nsIMsgMessageService.idl
+++ b/mailnews/base/public/nsIMsgMessageService.idl
@@ -128,5 +128,5 @@ interface nsIMsgMessageService : nsISupports {
 						in nsIUrlListener aUrlListener, 
 						out nsIURI aURL);
 
-	void Search(in nsIMsgSearchSession aSearchSession, in nsIMsgWindow aMsgWindow, in string aSearchUri);
+	void Search(in nsIMsgSearchSession aSearchSession, in nsIMsgWindow aMsgWindow, in nsIMsgFolder aMsgFolder, in string aSearchUri);
 };
diff --git a/mailnews/local/src/nsMailboxService.cpp b/mailnews/local/src/nsMailboxService.cpp
index de6ea53a237..1aa9ef1b40e 100644
--- a/mailnews/local/src/nsMailboxService.cpp
+++ b/mailnews/local/src/nsMailboxService.cpp
@@ -363,7 +363,7 @@ nsresult nsMailboxService::DisplayMessageForPrinting(const char* aMessageURI,
   return rv;
 }
 
-NS_IMETHODIMP nsMailboxService::Search(nsIMsgSearchSession *aSearchSession, nsIMsgWindow *aMsgWindow, const char *aMessageUri)
+NS_IMETHODIMP nsMailboxService::Search(nsIMsgSearchSession *aSearchSession, nsIMsgWindow *aMsgWindow, nsIMsgFolder *aMsgFolder, const char *aMessageUri)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
diff --git a/mailnews/news/src/nsNntpService.cpp b/mailnews/news/src/nsNntpService.cpp
index 8a91fc8c4a8..12aede3d73a 100644
--- a/mailnews/news/src/nsNntpService.cpp
+++ b/mailnews/news/src/nsNntpService.cpp
@@ -1198,7 +1198,7 @@ nsresult nsNntpService::DisplayMessageForPrinting(const char* aMessageURI, nsISu
   return rv;
 }
 
-NS_IMETHODIMP nsNntpService::Search(nsIMsgSearchSession *aSearchSession, nsIMsgWindow *aMsgWindow, const char *aMessageUri)
+NS_IMETHODIMP nsNntpService::Search(nsIMsgSearchSession *aSearchSession, nsIMsgWindow *aMsgWindow, nsIMsgFolder *aMsgFolder, const char *aMessageUri)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }