diff --git a/pkgs/tools/networking/bud/default.nix b/pkgs/tools/networking/bud/default.nix
index c0383b7c822..386642614bc 100644
--- a/pkgs/tools/networking/bud/default.nix
+++ b/pkgs/tools/networking/bud/default.nix
@@ -29,6 +29,8 @@ stdenv.mkDerivation rec {
     description = "A TLS terminating proxy";
     license     = licenses.mit;
     platforms   = platforms.linux;
+    # Does not build on aarch64-linux.
+    badPlatforms = [ "aarch64-linux" ];
     maintainers = with maintainers; [ cstrahan ];
   };
 }