diff --git a/afew/MailMover.py b/afew/MailMover.py
index 6e55a56..f3c749f 100644
--- a/afew/MailMover.py
+++ b/afew/MailMover.py
@@ -73,6 +73,9 @@ def move(self, maildir, rules):
                     try:
                         shutil.copy2(fname, self.get_new_name(fname, destination))
                         to_delete_fnames.append(fname)
+                    except shutil.SameFileError:
+                        logging.warn("trying to move '{}' onto itself".format(fname))
+                        continue
                     except shutil.Error as e:
                         # this is ugly, but shutil does not provide more
                         # finely individuated errors