1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/games/planetaryannihilation/default.nix b/pkgs/games/planetaryannihilation/default.nix
index 009d07d4456..7c58b4ca1e8 100755
--- a/pkgs/games/planetaryannihilation/default.nix
+++ b/pkgs/games/planetaryannihilation/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation {
   meta = with stdenv.lib; {
     homepage = http://www.uberent.com/pa/;
     description = "next-generation RTS that takes the genre to a planetary scale";
-    license = "unfree";
+    license = stdenv.lib.licenses.unfree;
     platforms = platforms.linux;
     maintainers = [ maintainers.iElectric ];
   };