```common lisp
(asdf:defsystem #:birch
  :serial t
  :description "A simple Common Lisp IRC client library"
  :author "Joram Schrijver <i@joram.io>"
  :license "LLGPL"
  :depends-on (#:split-sequence #:usocket #:flexi-streams)
  :components ((:file "package")
	       (:file "replies")
	       (:file "parse")
	       (:file "ctcp")
	       (:file "connection")
	       (:file "commands")
	       (:file "events")
	       (:file "birch")))

```

Fix license in system definition
user
```common lisp
(asdf:defsystem #:birch
  :serial t
  :description "A simple Common Lisp IRC client library"
  :author "Joram Schrijver <i@joram.io>"
  :license "MIT"
  :depends-on (#:split-sequence #:usocket #:flexi-streams)
  :components ((:file "package")
	       (:file "replies")
	       (:file "parse")
	       (:file "ctcp")
	       (:file "connection")
	       (:file "commands")
	       (:file "events")
	       (:file "birch")))

```
assistant