diff --git a/src/runner.py b/src/runner.py
index f17a5e5..324e50e 100644
--- a/src/runner.py
+++ b/src/runner.py
@@ -1,3 +1,19 @@
+# MCM-Manager: Minecraft Modpack Manager
+# Copyright (C) 2023  Tygo Everts
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 from argparse import ArgumentParser
 from dataclasses import dataclass, fields
 from os import path, makedirs
diff --git a/tests/common/test_maven_coords.py b/tests/common/test_maven_coords.py
index 78adf3b..c22c313 100644
--- a/tests/common/test_maven_coords.py
+++ b/tests/common/test_maven_coords.py
@@ -1,3 +1,19 @@
+# MCM-Manager: Minecraft Modpack Manager
+# Copyright (C) 2023  Tygo Everts
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 import unittest
 
 from src.common.maven_coords import maven_parse
diff --git a/tests/globalfuncs.py b/tests/globalfuncs.py
index f944e25..e299dcd 100644
--- a/tests/globalfuncs.py
+++ b/tests/globalfuncs.py
@@ -1,3 +1,19 @@
+# MCM-Manager: Minecraft Modpack Manager
+# Copyright (C) 2023  Tygo Everts
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 from contextlib import redirect_stdout
 from typing import Any, Callable
 from os import path, remove, walk