diff --git a/src/repl.c b/src/repl.c
index de4ea24..698fc99 100644
--- a/src/repl.c
+++ b/src/repl.c
@@ -1,4 +1,15 @@
 /**
+ * This file is part of the Fun programming language.
+ * https://hanez.org/project/fun/
+ *
+ * Copyright 2025 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ * Added: 2025-10-05
+ */
+ 
+ /**
  * REPL implementation for the Fun programming language.
  * Built only when FUN_WITH_REPL is defined.
  */