diff --git a/pkgs/development/libraries/libchop/default.nix b/pkgs/development/libraries/libchop/default.nix
index cc4eef6bf2ab..f5b7f72f08f0 100644
--- a/pkgs/development/libraries/libchop/default.nix
+++ b/pkgs/development/libraries/libchop/default.nix
@@ -44,5 +44,6 @@ stdenv.mkDerivation rec {
     license = "GPLv3+";
 
     maintainers = with stdenv.lib.maintainers; [ ludo viric ];
+    platforms = stdenv.lib.platforms.gnu;
   };
 }