diff --git a/pkgs/development/interpreters/perl/5.20/default.nix b/pkgs/development/interpreters/perl/5.20/default.nix
index 0ad955d03630..053f9730f45d 100644
--- a/pkgs/development/interpreters/perl/5.20/default.nix
+++ b/pkgs/development/interpreters/perl/5.20/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, enableThreading ? stdenv ? glibc }:
+{ stdenv, fetchurl, bzip2, zlib, enableThreading ? stdenv ? glibc }:
 
 # We can only compile perl with threading on platforms where we have a
 # real glibc in the stdenv.
@@ -33,7 +33,12 @@ stdenv.mkDerivation rec {
       ./no-sys-dirs.patch
     ]
     ++ optional stdenv.isSunOS ./ld-shared.patch
-    ++ stdenv.lib.optional stdenv.isDarwin [ ./cpp-precomp.patch ./no-libutil.patch ] ;
+    ++ stdenv.lib.optional stdenv.isDarwin [ ./cpp-precomp.patch ./no-libutil.patch ];
+
+  buildInputs = [ zlib bzip2 ];
+
+  BUILD_ZLIB = "false";
+  BUILD_BZIP2 = "0";
 
   # Build a thread-safe Perl with a dynamic libperls.o.  We need the
   # "installstyle" option to ensure that modules are put under