diff --git a/common/src/main/java/net/william278/uniform/CommandProvider.java b/common/src/main/java/net/william278/uniform/CommandProvider.java
index 7d6a09a..88bf29d 100644
--- a/common/src/main/java/net/william278/uniform/CommandProvider.java
+++ b/common/src/main/java/net/william278/uniform/CommandProvider.java
@@ -1,3 +1,24 @@
+/*
+ * This file is part of Uniform, licensed under the GNU General Public License v3.0.
+ *
+ *  Copyright (c) Tofaa2
+ *  Copyright (c) William278 <will27528@gmail.com>
+ *  Copyright (c) contributors
+ *
+ *  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/>.
+ */
+
 package net.william278.uniform;
 
 import org.jetbrains.annotations.NotNull;