diff --git a/src/network/node.py b/src/network/node.py
index ab9f5fbe..0bfda653 100644
--- a/src/network/node.py
+++ b/src/network/node.py
@@ -1,3 +1,7 @@
+"""
+src/network/node.py
+===================
+"""
 import collections
 
 Node = collections.namedtuple('Node', ['services', 'host', 'port'])