diff --git a/identity_ecdsa_verifier/src/common.rs b/identity_ecdsa_verifier/src/common.rs
index a61e38139..41224cd19 100644
--- a/identity_ecdsa_verifier/src/common.rs
+++ b/identity_ecdsa_verifier/src/common.rs
@@ -1,3 +1,6 @@
+// Copyright 2020-2024 IOTA Stiftung, Filancore GmbH
+// SPDX-License-Identifier: Apache-2.0
+
 use std::ops::Deref as _;
 
 use ecdsa::elliptic_curve::sec1::FromEncodedPoint;