diff --git a/Plan/common/src/main/java/com/djrapitops/plan/utilities/SemaphoreAccessCounter.java b/Plan/common/src/main/java/com/djrapitops/plan/utilities/SemaphoreAccessCounter.java
index f0f06c33a..0840354d6 100644
--- a/Plan/common/src/main/java/com/djrapitops/plan/utilities/SemaphoreAccessCounter.java
+++ b/Plan/common/src/main/java/com/djrapitops/plan/utilities/SemaphoreAccessCounter.java
@@ -1,3 +1,19 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
 package com.djrapitops.plan.utilities;
 
 import java.util.concurrent.atomic.AtomicInteger;