diff --git a/pkgs/tools/typesetting/pdftk/default.nix b/pkgs/tools/typesetting/pdftk/default.nix
index 84a853bb0df6..73bf0b9e1287 100644
--- a/pkgs/tools/typesetting/pdftk/default.nix
+++ b/pkgs/tools/typesetting/pdftk/default.nix
@@ -10,6 +10,8 @@ stdenv.mkDerivation {
 
   buildInputs = [ gcj unzip ];
 
+  hardeningDisable = [ "fortify" "format" ];
+
   preBuild = ''
     cd pdftk
     sed -e 's@/usr/bin/@@g' -i Makefile.*