diff --git a/offlineimap/folder/Maildir.py b/offlineimap/folder/Maildir.py
index d067194..5ae9abb 100644
--- a/offlineimap/folder/Maildir.py
+++ b/offlineimap/folder/Maildir.py
@@ -222,6 +222,7 @@ class MaildirFolder(BaseFolder):
         """Return the content of the message"""
         filename = self.messagelist[uid]['filename']
         filepath = os.path.join(self.getfullname(), filename)
+        self.ui.warn('Maildir.getmessage: uid %d, file %s' % (uid, filepath))
         file = open(filepath, 'rt')
         retval = file.read()
         file.close()