diff --git a/melib/src/structs.rs b/melib/src/structs.rs
index d4e7ce704..75e7a507a 100644
--- a/melib/src/structs.rs
+++ b/melib/src/structs.rs
@@ -1,3 +1,24 @@
+/*
+ * meli - melib crate.
+ *
+ * Copyright 2019 Manos Pitsidianakis
+ *
+ * This file is part of meli.
+ *
+ * meli is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * meli is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with meli. If not, see <http://www.gnu.org/licenses/>.
+ */
+
 use std::iter::{Extend, FromIterator};
 use std::ops::Index;