diff --git a/pkgs/games/newtonwars/default.nix b/pkgs/games/newtonwars/default.nix
index 0fe9d1ee0f5..c806dfa5b80 100644
--- a/pkgs/games/newtonwars/default.nix
+++ b/pkgs/games/newtonwars/default.nix
@@ -33,5 +33,6 @@ stdenv.mkDerivation rec {
     description = "A space battle game with gravity as the main theme";
     maintainers = with maintainers; [ pSub ];
     platforms = platforms.linux;
+    license = licenses.mit;
   };
 }