diff --git a/src/error.c b/src/error.c
index bda67b0..f027e2b 100644
--- a/src/error.c
+++ b/src/error.c
@@ -1,3 +1,5 @@
+/* Copyright (c) 2025 Quinn
+ * Licensed under the MIT Licence. See LICENSE for details */
 #include "error.h"
 
 #include <stdarg.h>