diff --git a/tests/integration/__init__.py b/tests/integration/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..58426bbc2bbfc951dc181bdd19b5b2569c074af0
--- /dev/null
+++ b/tests/integration/__init__.py
@@ -0,0 +1,14 @@
+# Copyright  2016-2022 Maël Azimi <m.a@moul.re>
+#
+# Silkaj is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Silkaj is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with Silkaj. If not, see <https://www.gnu.org/licenses/>.
diff --git a/tests/unit/__init__.py b/tests/unit/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..58426bbc2bbfc951dc181bdd19b5b2569c074af0
--- /dev/null
+++ b/tests/unit/__init__.py
@@ -0,0 +1,14 @@
+# Copyright  2016-2022 Maël Azimi <m.a@moul.re>
+#
+# Silkaj is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Silkaj is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with Silkaj. If not, see <https://www.gnu.org/licenses/>.