diff --git a/nix/pkgs/readsb/default.nix b/nix/pkgs/readsb/default.nix
index 8997ace830..34d3d56d3a 100644
--- a/nix/pkgs/readsb/default.nix
+++ b/nix/pkgs/readsb/default.nix
@@ -40,6 +40,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     pkg-config
   ];
+  hardeningDisable = [ "fortify" ];  # the application does this anyway
 
   makeFlags = "RTLSDR=yes AIRCRAFT_HASH_BITS=15 HISTORY=yes BLADERF=yes PLUTOSDR=yes AGGRESSIVE=yes HAVE_BIASTEE=yes";
   enableParallelBuilding = true;