diff --git a/tests/errors/__init__.py b/tests/errors/__init__.py
new file mode 100644
index 0000000..86831ba
--- /dev/null
+++ b/tests/errors/__init__.py
@@ -0,0 +1,3 @@
+# Copyright (c) 2015 Nicolas JOUANIN
+#
+# See the file license.txt for copying permission.