From 82e6071fb3733ff1540dc8595b4596fc16141ec3 Mon Sep 17 00:00:00 2001
From: Rui Carmo <rcarmo@users.noreply.github.com>
Date: Sat, 29 Jul 2017 19:47:51 +0100
Subject: [PATCH] Fix #2

---
 imapbackup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/imapbackup.py b/imapbackup.py
index 01e5179..1c42358 100644
--- a/imapbackup.py
+++ b/imapbackup.py
@@ -603,7 +603,7 @@ def main():
         fil_messages = scan_file(filename, config['compress'],
                                  config['overwrite'], config['nospinner'])
         new_messages = {}
-        for msg_id in fol_messages:
+        for msg_id in fol_messages.keys():
           if msg_id not in fil_messages:
             new_messages[msg_id] = fol_messages[msg_id]