diff --git a/A2SServer/PlayerSimulation.cs b/A2SServer/PlayerSimulation.cs
index 0c76ef0..c822e89 100644
--- a/A2SServer/PlayerSimulation.cs
+++ b/A2SServer/PlayerSimulation.cs
@@ -1,4 +1,21 @@
-namespace A2SServer;
+/*
+ * Copyright (C) 2023-2024  Tuomo Kriikkula
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace A2SServer;
 
 public class InfoUpdatedEventArgs(Info info) : EventArgs
 {
diff --git a/A2SServer/WeightedRandom.cs b/A2SServer/WeightedRandom.cs
index 43a8e9a..38d5bdf 100644
--- a/A2SServer/WeightedRandom.cs
+++ b/A2SServer/WeightedRandom.cs
@@ -1,4 +1,21 @@
-namespace A2SServer;
+/*
+ * Copyright (C) 2023-2024  Tuomo Kriikkula
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace A2SServer;
 
 using System;
 using System.Collections.Generic;
@@ -40,4 +57,4 @@ public T GetRandom()
 
         throw new ArgumentException("no entries");
     }
-}
+}
\ No newline at end of file