diff --git a/pkgs/development/libraries/pyotherside/default.nix b/pkgs/development/libraries/pyotherside/default.nix
index a27be3b9908b..5e8ab41b8c65 100644
--- a/pkgs/development/libraries/pyotherside/default.nix
+++ b/pkgs/development/libraries/pyotherside/default.nix
@@ -75,5 +75,6 @@ stdenv.mkDerivation rec {
     homepage = "https://thp.io/2011/pyotherside/";
     license = lib.licenses.isc;
     maintainers = [ lib.maintainers.mic92 ];
+    platforms = lib.platforms.unix ++ lib.platforms.windows;
   };
 }