diff --git a/tldp/sources.py b/tldp/sources.py
index accc80a..ee961c3 100644
--- a/tldp/sources.py
+++ b/tldp/sources.py
@@ -5,7 +5,7 @@ from __future__ import absolute_import, division, print_function
 import os
 
 from .utils import logger
-from .guess import guess, knownextensions
+from .typeguesser import guess, knownextensions
 
 
 class Sources(object):