diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2e5a8651..5cb27433 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -190,6 +190,7 @@ set(CPACK_SOURCE_IGNORE_FILES
     "${CMAKE_SOURCE_DIR}/build/"
     "${CMAKE_SOURCE_DIR}/tmp/"
     "${CMAKE_SOURCE_DIR}/@"
+    "${CMAKE_SOURCE_DIR}/.*\\.lua"
     "\\.dwarfs$"
     "/\\."
     ".*~$")
diff --git a/dwarfs.lua b/dwarfs.lua
index 0fd69056..3cf7399b 100644
--- a/dwarfs.lua
+++ b/dwarfs.lua
@@ -1,3 +1,21 @@
+--
+-- Copyright (c) Marcus Holland-Moritz
+--
+-- This file is part of dwarfs.
+--
+-- dwarfs 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.
+--
+-- dwarfs 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
+-- dwarfs.  If not, see <https://www.gnu.org/licenses/>.
+--
+
 function filter(f)
   -- if f.name == 'Jamroot' or (f.name == 'test' and f.type == 'dir') then
   --   return false