diff --git a/lib/licenses.nix b/lib/licenses.nix
index 092cbbbdb25..e3803c098c7 100644
--- a/lib/licenses.nix
+++ b/lib/licenses.nix
@@ -13,6 +13,11 @@ lib.mapAttrs (n: v: v // { shortName = n; }) rec {
    * add it to this list. The URL mentioned above is a good source for inspiration.
    */
 
+  abstyles = spdx {
+    spdxId = "Abstyles";
+    fullName = "Abstyles License";
+  };
+
   afl21 = spdx {
     spdxId = "AFL-2.1";
     fullName = "Academic Free License v2.1";
diff --git a/pkgs/development/tools/misc/cwebbin/default.nix b/pkgs/development/tools/misc/cwebbin/default.nix
index a952475b967..d8deb75d2d4 100644
--- a/pkgs/development/tools/misc/cwebbin/default.nix
+++ b/pkgs/development/tools/misc/cwebbin/default.nix
@@ -46,5 +46,6 @@ stdenv.mkDerivation rec {
     description = "Literate Programming in C/C++";
     platforms = with platforms; unix;
     maintainers = with maintainers; [ vrthra ];
+    license = licenses.abstyles;
   };
 }