diff --git a/pkgs/development/python-modules/pyasyncore/default.nix b/pkgs/development/python-modules/pyasyncore/default.nix
index 716076e4e34f..2acdd9ba5396 100644
--- a/pkgs/development/python-modules/pyasyncore/default.nix
+++ b/pkgs/development/python-modules/pyasyncore/default.nix
@@ -29,7 +29,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Make asyncore available for Python 3.12 onwards";
     homepage = "https://github.com/simonrob/pyasyncore";
-    license = licenses.unfree; # FIXME: nix-init did not found a license
+    license = licenses.psfl;
     maintainers = with maintainers; [ ];
   };
 }