diff --git a/pyzelda/__init__.py b/pyzelda/__init__.py
index af0a2dc..1b2ce37 100644
--- a/pyzelda/__init__.py
+++ b/pyzelda/__init__.py
@@ -1,4 +1,5 @@
 __author__    = "Arthur Vigan, Mamadou N'Diaye"
+__copyright__ = "Copyright (C) 2017-2020 Arthur Vigan, Mamadou N'Diaye"
 __license__   = 'MIT'
 __version__   = '1.1'