diff --git a/pipenv/project.py b/pipenv/project.py
index 9dd4f776..bd7c54f1 100644
--- a/pipenv/project.py
+++ b/pipenv/project.py
@@ -85,6 +85,7 @@ class Project(object):
 
     @property
     def source(self):
+        # TODO: Should load from Pipfile.lock too.
         if 'source' in self.parsed_pipfile:
             return self.parsed_pipfile['source'][0]
         else: