diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..36f3fbe
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,2 @@
+recursive-include scone *.tx
+
diff --git a/scone/head/grammar/__init__.py b/scone/head/grammar/__init__.py
new file mode 100644
index 0000000..541a557
--- /dev/null
+++ b/scone/head/grammar/__init__.py
@@ -0,0 +1,16 @@
+#  Copyright 2020, Olivier 'reivilibre'.
+#
+#  This file is part of Scone.
+#
+#  Scone 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.
+#
+#  Scone 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 Scone.  If not, see <https://www.gnu.org/licenses/>.