diff --git a/pkgs/tools/networking/netsniff-ng/default.nix b/pkgs/tools/networking/netsniff-ng/default.nix
index 46eb8accb79c..0787cb9f29bd 100644
--- a/pkgs/tools/networking/netsniff-ng/default.nix
+++ b/pkgs/tools/networking/netsniff-ng/default.nix
@@ -2,7 +2,7 @@
 , libnetfilter_conntrack, libnl, libpcap, libsodium, liburcu, ncurses, perl
 , pkgconfig, zlib }:
 
-let version = "0.5.9-70-g123b444"; in
+let version = "0.5.9-71-g77445f8"; in
 stdenv.mkDerivation {
   name = "netsniff-ng-${version}";
 
@@ -10,18 +10,14 @@ stdenv.mkDerivation {
   src = fetchFromGitHub rec {
     repo = "netsniff-ng";
     owner = repo;
-    rev = "123b444d78337a8f00d3ba83de3af3cdc6891de8";
-    sha256 = "0yqh83g0ja4ggdiylp63h57pxx39fn6axzfvs2w0lp27gbl4yc0i";
+    rev = "77445f81d451eef6b78b79a2bcc24d21d4be4178";
+    sha256 = "0ny9bph070mny6i9r0i3wsx2bsl53135n439ab6r9qk710xjz91j";
   };
 
   buildInputs = [ bison flex geoip geolite-legacy libcli libnet libnl
     libnetfilter_conntrack libpcap libsodium liburcu ncurses perl
     pkgconfig zlib ];
 
-  postPatch = ''
-    substituteInPlace curvetun/Makefile --replace "curvetun.o" "curvetun.o sysctl.o"
-  '';
-
   # ./configure is not autoGNU but some home-brewn magic
   configurePhase = ''
     patchShebangs configure