diff --git a/css-lexer.asd b/css-lexer.asd
index 073f452..3d064ba 100644
--- a/css-lexer.asd
+++ b/css-lexer.asd
@@ -1,20 +1,5 @@
-;;
;; css-lexer - CSS lexer as a cl-stream/token-stream
-;;
-;; Copyright 2018 Thomas de Grivel <thoxdg@gmail.com>
-;;
-;; Permission to use, copy, modify, and distribute this software for any
-;; purpose with or without fee is hereby granted, provided that the above
-;; copyright notice and this permission notice appear in all copies.
-;;
-;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-;; WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-;; MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-;; ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-;; WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-;; ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-;; OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-;;
+;; Copyright 2018,2022 Thomas de Grivel <thoxdg@gmail.com>
(in-package :common-lisp-user)
diff --git a/css-lexer.lisp b/css-lexer.lisp
index 4f21451..68daad5 100644
--- a/css-lexer.lisp
+++ b/css-lexer.lisp
@@ -1,3 +1,5 @@
+;; css-lexer - CSS lexer as a cl-stream/token-stream
+;; Copyright 2018,2022 Thomas de Grivel <thoxdg@gmail.com>
(in-package :css-lexer)
diff --git a/package.lisp b/package.lisp
index fd64cbe..4aad331 100644
--- a/package.lisp
+++ b/package.lisp
@@ -1,20 +1,5 @@
-;;
-;; css-lexer - CSS lexer
-;;
-;; Copyright 2017,2018 Thomas de Grivel <thoxdg@gmail.com>
-;;
-;; Permission to use, copy, modify, and distribute this software for any
-;; purpose with or without fee is hereby granted, provided that the above
-;; copyright notice and this permission notice appear in all copies.
-;;
-;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-;; WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-;; MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-;; ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-;; WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-;; ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-;; OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-;;
+;; css-lexer - CSS lexer as a cl-stream/token-stream
+;; Copyright 2018,2022 Thomas de Grivel <thoxdg@gmail.com>
(in-package :common-lisp)
diff --git a/run-tests.lisp b/run-tests.lisp
index b8ac01c..7b6171d 100644
--- a/run-tests.lisp
+++ b/run-tests.lisp
@@ -1,3 +1,6 @@
+;; css-lexer - CSS lexer as a cl-stream/token-stream
+;; Copyright 2018,2022 Thomas de Grivel <thoxdg@gmail.com>
+
(asdf:load-system :css-lexer/test)
(use-package :css-lexer)
(css-lexer/test:run)
diff --git a/test.lisp b/test.lisp
index 0f3375a..81114a8 100644
--- a/test.lisp
+++ b/test.lisp
@@ -1,3 +1,5 @@
+;; css-lexer - CSS lexer as a cl-stream/token-stream
+;; Copyright 2018,2022 Thomas de Grivel <thoxdg@gmail.com>
(in-package :common-lisp-user)