diff --git a/pkgs/top-level/release-cross.nix b/pkgs/top-level/release-cross.nix
index 74394379b399..be6dd89bf7dd 100644
--- a/pkgs/top-level/release-cross.nix
+++ b/pkgs/top-level/release-cross.nix
@@ -16,6 +16,8 @@ let
     buildPackages.binutils = nativePlatforms;
     gmp = nativePlatforms;
     libcCross = nativePlatforms;
+    nix = nativePlatforms;
+    nixUnstable = nativePlatforms;
   };
 
   gnuCommon = lib.recursiveUpdate common {