diff --git a/accounting/storage/sql/__init__.py b/accounting/storage/sql/__init__.py
index c213f812ddb62491ee753d5ed896919b593dbf86..9938bc9a986a97b0a66290c11b8c8e3604ec48d7 100644
--- a/accounting/storage/sql/__init__.py
+++ b/accounting/storage/sql/__init__.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import logging
 import json