diff --git a/src/distributions/slice.rs b/src/distributions/slice.rs
index a39e63c1..e5e3fe26 100644
--- a/src/distributions/slice.rs
+++ b/src/distributions/slice.rs
@@ -1,4 +1,10 @@
 // Copyright 2021 Developers of the Rand project.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
 
 use crate::distributions::{Distribution, Uniform};