diff --git a/pkgs/applications/networking/iptraf/default.nix b/pkgs/applications/networking/iptraf/default.nix
index 1d67fa3dcf57..d1a0b2d4b029 100644
--- a/pkgs/applications/networking/iptraf/default.nix
+++ b/pkgs/applications/networking/iptraf/default.nix
@@ -2,12 +2,14 @@
 
 stdenv.mkDerivation rec {
   name = "iptraf-3.0.1";
-  
+
   src = fetchurl {
     url = ftp://iptraf.seul.org/pub/iptraf/iptraf-3.0.1.tar.gz;
     sha256 = "12n059j9iihhpf6spmlaspqzxz3wqan6kkpnhmlj08jdijpnk84m";
   };
 
+  hardeningDisable = [ "format" ];
+
   patchPhase = ''
     sed -i -e 's,#include <linux/if_tr.h>,#include <netinet/if_tr.h>,' src/*
   '';
@@ -18,7 +20,7 @@ stdenv.mkDerivation rec {
     mkdir -p $out/bin
     cp iptraf $out/bin
   '';
-  
+
   buildInputs = [ncurses];
 
   meta = {