diff --git a/common/src/main/java/com/github/dimadencep/mods/rrls/mixins/compat/ServerResourcePackManagerMixin.java b/common/src/main/java/com/github/dimadencep/mods/rrls/mixins/compat/ServerResourcePackManagerMixin.java
index 3851745..1fa3a94 100644
--- a/common/src/main/java/com/github/dimadencep/mods/rrls/mixins/compat/ServerResourcePackManagerMixin.java
+++ b/common/src/main/java/com/github/dimadencep/mods/rrls/mixins/compat/ServerResourcePackManagerMixin.java
@@ -1,3 +1,13 @@
+/*
+ * Copyright 2023 dima_dencep.
+ *
+ * Licensed under the Open Software License, Version 3.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ *
+ * You may obtain a copy of the License at
+ *     https://github.com/dima-dencep/rrls/blob/HEAD/LICENSE
+ */
+
 package com.github.dimadencep.mods.rrls.mixins.compat;
 
 import com.github.dimadencep.mods.rrls.Rrls;