diff --git a/pkgs/by-name/cj/cjson/package.nix b/pkgs/by-name/cj/cjson/package.nix
index e9bb7894f2b8..ce4b9977ff52 100644
--- a/pkgs/by-name/cj/cjson/package.nix
+++ b/pkgs/by-name/cj/cjson/package.nix
@@ -46,6 +46,6 @@ stdenv.mkDerivation (finalAttrs: {
     description = "Ultralightweight JSON parser in ANSI C";
     license = lib.licenses.mit;
     maintainers = [ lib.maintainers.matthiasbeyer ];
-    platforms = lib.platforms.unix;
+    platforms = lib.platforms.windows ++ lib.platforms.unix;
   };
 })