diff --git a/devtools/gdb_pretty_printers.py b/devtools/gdb_pretty_printers.py
index 852e593d950..98a2739ea7d 100644
--- a/devtools/gdb_pretty_printers.py
+++ b/devtools/gdb_pretty_printers.py
@@ -1,3 +1,32 @@
+"""
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+"""
+
+"""
+USAGE:
+inside gdb, use:
+> source devtools/gdb_pretty_printers.py
+"""
+
 class StringPrinter:
     "Prints Common::String and Common::U32String"