diff --git a/src/error.rs b/src/error.rs
index 6f6600b..c176ff5 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,3 +1,6 @@
+// Copyright (C) 2021 Scott Lamb <slamb@slamb.org>
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
 use std::fmt::Display;
 
 use crate::{ConnectionContext, RtspMessageContext};
diff --git a/src/tokio.rs b/src/tokio.rs
index 4b6520c..f6235f4 100644
--- a/src/tokio.rs
+++ b/src/tokio.rs
@@ -1,3 +1,6 @@
+// Copyright (C) 2021 Scott Lamb <slamb@slamb.org>
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
 //! tokio-based [`Connection`].
 //!
 //! In theory there could be a similar async-std-based implementation.