diff --git a/osicat-tests.asd b/osicat-tests.asd
index ad241a875e1195d01b42ade1b0bff54549b3a3b2..207d990dd5acf4779939f220df8bb4984a1fd607 100644
--- a/osicat-tests.asd
+++ b/osicat-tests.asd
@@ -25,6 +25,9 @@
 ;;; DEALINGS IN THE SOFTWARE.
 
 (defsystem osicat-tests
+  :author "Nikodemus Siivola <nikodemus@random-state.net>"
+  :description "Osicat test suite"
+  :license "MIT"
   :depends-on (osicat rt)
   :components
   ((:module tests
diff --git a/osicat.asd b/osicat.asd
index f2243db25e164f7a82fb4b78be632cacec7048c6..9b9d8c48ee640c32f995367d4ecc6ca66e191536 100644
--- a/osicat.asd
+++ b/osicat.asd
@@ -34,6 +34,9 @@
 ;;; that might be useful.  --luis
 
 (defsystem osicat
+  :author "Nikodemus Siivola <nikodemus@random-state.net>"
+  :description "A lightweight operating system interface"
+  :license "MIT"
   :depends-on (cffi cffi-grovel alexandria trivial-features)
   :components
   ((:module osicat-sys