diff --git a/pkgs/development/tools/misc/libtool/default.nix b/pkgs/development/tools/misc/libtool/default.nix
index 88a33bb5dcc..23cc2c87a51 100644
--- a/pkgs/development/tools/misc/libtool/default.nix
+++ b/pkgs/development/tools/misc/libtool/default.nix
@@ -2,13 +2,14 @@
 
 stdenv.mkDerivation rec {
   name = "libtool-1.5.26";
-  
+
   src = fetchurl {
     url = "mirror://gnu/libtool/${name}.tar.gz";
     sha256 = "029ggq5kri1gjn6nfqmgw4w920gyfzscjjxbsxxidal5zqsawd8w";
   };
-  
-  buildInputs = [m4 perl];
+
+  nativeBuildInputs = [m4];
+  buildInputs = [perl];
 
   # Don't fixup "#! /bin/sh" in Libtool, otherwise it will use the
   # "fixed" path in generated files!