diff --git a/ruleguard/rules-requirefailnow.go b/ruleguard/rules-requirefailnow.go
index 53ccc7de34..a21884b757 100644
--- a/ruleguard/rules-requirefailnow.go
+++ b/ruleguard/rules-requirefailnow.go
@@ -1,3 +1,11 @@
+// Copyright 2025-Present Couchbase, Inc.
+//
+// Use of this software is governed by the Business Source License included
+// in the file licenses/BSL-Couchbase.txt.  As of the Change Date specified
+// in that file, in accordance with the Business Source License, use of this
+// software will be governed by the Apache License, Version 2.0, included in
+// the file licenses/APL2.txt.
+
 //go:build ruleguard
 // +build ruleguard