diff --git a/keyboards/ploopyco/trackball/keymaps/merlin04/config.h b/keyboards/ploopyco/trackball/keymaps/merlin04/config.h
index bee865d91bd..0760aba1a0a 100644
--- a/keyboards/ploopyco/trackball/keymaps/merlin04/config.h
+++ b/keyboards/ploopyco/trackball/keymaps/merlin04/config.h
@@ -1,2 +1,20 @@
+/* Copyright 2021 Benjamin Smith (@Merlin04)
+ *
+ * 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 .
+ */
+
+#pragma once
+
#define TAPPING_TERM 175
#define IGNORE_MOD_TAP_INTERRUPT
diff --git a/users/merlin04/register_any.c b/users/merlin04/register_any.c
index 95a308ab9a4..9dca7b61430 100644
--- a/users/merlin04/register_any.c
+++ b/users/merlin04/register_any.c
@@ -1,3 +1,19 @@
+/* Copyright 2021 Benjamin Smith (@Merlin04)
+ *
+ * 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 .
+ */
+
#include "register_any.h"
#include "action.h"
#include QMK_KEYBOARD_H
diff --git a/users/merlin04/register_any.h b/users/merlin04/register_any.h
index 38d24e4a744..74e485c0eb7 100644
--- a/users/merlin04/register_any.h
+++ b/users/merlin04/register_any.h
@@ -1,3 +1,19 @@
+/* Copyright 2021 Benjamin Smith (@Merlin04)
+ *
+ * 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 .
+ */
+
#pragma once
#include QMK_KEYBOARD_H