diff --git a/pkgs/applications/science/math/qalculate-gtk/default.nix b/pkgs/applications/science/math/qalculate-gtk/default.nix
index 6bc5d874bc0d..77026eb490a1 100644
--- a/pkgs/applications/science/math/qalculate-gtk/default.nix
+++ b/pkgs/applications/science/math/qalculate-gtk/default.nix
@@ -8,6 +8,8 @@ stdenv.mkDerivation rec {
     sha256 = "0b986x5yny9vrzgxlbyg80b23mxylxv2zz8ppd9svhva6vi8xsm4";
   };
 
+  hardening_format = false;
+
   nativeBuildInputs = [ intltool pkgconfig ];
   buildInputs = [ libqalculate gtk gnome2.libglade gnome2.libgnome gnome2.scrollkeeper ];