diff --git a/mailnews/imap/src/nsImapMailFolder.cpp b/mailnews/imap/src/nsImapMailFolder.cpp
index 02838dbc56dd..8f789fcdc96f 100644
--- a/mailnews/imap/src/nsImapMailFolder.cpp
+++ b/mailnews/imap/src/nsImapMailFolder.cpp
@@ -850,7 +850,7 @@ nsresult nsImapMailFolder::GetDBFolderInfoAndDB(
 }
 
 NS_IMETHODIMP nsImapMailFolder::DeleteMessages(nsISupportsArray *messages,
-                                               nsITransactionManager *txnMgr)
+                                               nsITransactionManager *txnMgr, PRBool deleteStorage)
 {
     nsresult rv = NS_ERROR_FAILURE;
     // *** jt - assuming delete is move to the trash folder for now
diff --git a/mailnews/imap/src/nsImapMailFolder.h b/mailnews/imap/src/nsImapMailFolder.h
index b6e94d5484d2..5a480a68d951 100644
--- a/mailnews/imap/src/nsImapMailFolder.h
+++ b/mailnews/imap/src/nsImapMailFolder.h
@@ -107,7 +107,7 @@ public:
     virtual nsresult GetDBFolderInfoAndDB(nsIDBFolderInfo **folderInfo,
                                           nsIMsgDatabase **db);
  	NS_IMETHOD DeleteMessages(nsISupportsArray *messages,
-                              nsITransactionManager *txnMgr);
+                              nsITransactionManager *txnMgr, PRBool deleteStorage);
 	NS_IMETHOD CreateMessageFromMsgDBHdr(nsIMsgDBHdr *msgHdr, nsIMessage
                                          **message);
     NS_IMETHOD GetNewMessages();