diff --git a/pkgs/by-name/li/libbgcode/package.nix b/pkgs/by-name/li/libbgcode/package.nix
index e4dd6099bc9d..6a28df1dce61 100644
--- a/pkgs/by-name/li/libbgcode/package.nix
+++ b/pkgs/by-name/li/libbgcode/package.nix
@@ -36,5 +36,6 @@ stdenv.mkDerivation {
     description = "Prusa Block & Binary G-code reader / writer / converter";
     license = licenses.agpl3Only;
     maintainers = with maintainers; [ lach ];
+    platforms = platforms.unix;
   };
 }