diff --git a/src/inv.rs b/src/inv.rs
index 93170ef..6af2fff 100644
--- a/src/inv.rs
+++ b/src/inv.rs
@@ -1,3 +1,22 @@
+/*
+ * Vento, a CLI inventory for your files.
+ * Copyright (C) 2022 Lux Aliaga
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
 use std::{fs, process};
 use std::path::{Path, PathBuf};
 use std::io::{self, Write};
diff --git a/src/item.rs b/src/item.rs
index 78c4504..2147881 100644
--- a/src/item.rs
+++ b/src/item.rs
@@ -1,3 +1,22 @@
+/*
+ * Vento, a CLI inventory for your files.
+ * Copyright (C) 2022 Lux Aliaga
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
 pub fn take() {
     // to be implemented
 }
diff --git a/src/main.rs b/src/main.rs
index d7e09dc..5b108de 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,20 @@
+/* Vento, a CLI inventory for your files.
+ * Copyright (C) 2022 Lux Aliaga
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 use std::env;
 use colored::Colorize;