diff --git a/pkgs/tools/typesetting/biber/default.nix b/pkgs/tools/typesetting/biber/default.nix
index 99ef60b399d..12ea90fa725 100644
--- a/pkgs/tools/typesetting/biber/default.nix
+++ b/pkgs/tools/typesetting/biber/default.nix
@@ -30,10 +30,6 @@ buildPerlModule rec {
   # Tests seem to be broken
   doCheck = false;
 
-  postUnpack = ''
-    sed '1s/env perl/perl/' -i */bin/biber
-  '';
-
   meta = {
     description = "Backend for BibLaTeX";
     license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];