diff --git a/pkgs/development/python-modules/scapy/default.nix b/pkgs/development/python-modules/scapy/default.nix
index 06061eb9ebff..393f8c2c1108 100644
--- a/pkgs/development/python-modules/scapy/default.nix
+++ b/pkgs/development/python-modules/scapy/default.nix
@@ -6,6 +6,7 @@
 , withVoipSupport ? true, sox
 , withPlottingSupport ? true, matplotlib
 , withGraphicsSupport ? false, pyx, texlive, graphviz, imagemagick
+, withManufDb ? false, wireshark
 # 2D/3D graphics and graphs TODO: VPython
 # TODO: nmap, numpy
 }:
@@ -26,6 +27,10 @@ buildPythonPackage rec {
   # TODO: Temporary workaround
   patches = [ ./fix-version-1.patch ./fix-version-2.patch ];
 
+  postPatch = lib.optionalString withManufDb ''
+    substituteInPlace scapy/data.py --replace "/opt/wireshark" "${wireshark}"
+  '';
+
   propagatedBuildInputs = [ pycrypto ecdsa ]
     ++ lib.optional withOptionalDeps [ tcpdump ipython ]
     ++ lib.optional withCryptography [ cryptography ]