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-rw-r--r--core/lexer.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/core/lexer.c b/core/lexer.c
index e93c629..72aa942 100644
--- a/core/lexer.c
+++ b/core/lexer.c
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) 2026, Apollo Telephone Laboratories.
+ * Provided under the BSD-3 clause.
+ */
+
#include <ctype.h>
#include <stdbool.h>
#include <stdlib.h>