diff --git a/LICENSE-xxHash b/LICENSE-xxHash
index 151937d..43cd5de 100644
--- a/LICENSE-xxHash
+++ b/LICENSE-xxHash
@@ -1,33 +1,31 @@
-/*
-*  xxHash - Fast Hash algorithm
-*  Copyright (C) 2012-2016, Yann Collet
-*
-*  BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
-*
-*  Redistribution and use in source and binary forms, with or without
-*  modification, are permitted provided that the following conditions are
-*  met:
-*
-*  * Redistributions of source code must retain the above copyright
-*  notice, this list of conditions and the following disclaimer.
-*  * Redistributions in binary form must reproduce the above
-*  copyright notice, this list of conditions and the following disclaimer
-*  in the documentation and/or other materials provided with the
-*  distribution.
-*
-*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-*  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-*  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-*  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*
-*  You can contact the author at :
-*  - xxHash homepage: http://www.xxhash.com
-*  - xxHash source repository : https://github.com/Cyan4973/xxHash
-*/
+xxHash - Fast Hash algorithm
+Copyright (C) 2012-2016, Yann Collet
+
+BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+You can contact the author at :
+- xxHash homepage: http://www.xxhash.com
+- xxHash source repository : https://github.com/Cyan4973/xxHash
diff --git a/pyproject.toml b/pyproject.toml
index e6b0621..e062684 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,11 +11,12 @@ version = "0.3.1"
 description = "Hash sketches of sequences"
 readme = "README.md"
 requires-python = ">3.8"
-license = { text = "MIT" }
+license = { text = "MIT + BSD-2-Clause (xxHash)" }
 authors = [{ name = "Laurent Gautier", email = "lgautier@gmail.com" }]
 classifiers = [
     'Intended Audience :: Science/Research',
     'License :: OSI Approved :: MIT License',
+    "License :: OSI Approved :: BSD-2-Clause",
     'Operating System :: POSIX :: Linux',
     'Programming Language :: C++',
     'Programming Language :: Python :: 3 :: Only',
@@ -43,4 +44,5 @@ packages = [
     "mashingpumpkins",
     "mashingpumpkins.tests",
 ]
-# zip_safe = false # not supported as of setuptools==62.3.2
+include-package-data = false
+license-files = ["LICENSE", "LICENSE-xxHash"]
\ No newline at end of file
diff --git a/src/_xxhash.c b/src/_xxhash.c
index 0464936..6bfb8d9 100644
--- a/src/_xxhash.c
+++ b/src/_xxhash.c
@@ -67,7 +67,7 @@ static PyMethodDef xxhashModuleMethods[] = {
 static struct PyModuleDef moduledef = {
   PyModuleDef_HEAD_INIT,
   "_xxhash",
-  "Utilities to compute XXHash.",
+  "",
   -1,
   xxhashModuleMethods};