diff --git a/pkgs/servers/sabnzbd/default.nix b/pkgs/servers/sabnzbd/default.nix
index d41e1bce7f5..616d898b33f 100644
--- a/pkgs/servers/sabnzbd/default.nix
+++ b/pkgs/servers/sabnzbd/default.nix
@@ -1,7 +1,7 @@
 {stdenv, fetchurl, python2, par2cmdline, unzip, unrar, p7zip, makeWrapper}:
 
 let
-  pythonEnv = python2.withPackages(ps: with ps; [ pyopenssl cheetah]);
+  pythonEnv = python2.withPackages(ps: with ps; [ pyopenssl cheetah yenc ]);
   path = stdenv.lib.makeBinPath [ par2cmdline unrar unzip p7zip ];
 in stdenv.mkDerivation rec {
   version = "1.1.0";