diff --git a/pkgs/tools/misc/expect/default.nix b/pkgs/tools/misc/expect/default.nix
index f17395b9ece8..e11ea87810f9 100644
--- a/pkgs/tools/misc/expect/default.nix
+++ b/pkgs/tools/misc/expect/default.nix
@@ -1,14 +1,14 @@
-{stdenv, fetchurl, tcl}:
+{stdenv, fetchurl, tcl, tk, autoconf, xproto, libX11}:
 
 stdenv.mkDerivation {
-  name = "expect-5.43.0";
+  name = "expect-5.44.1";
   
   src = fetchurl {
-    url = http://expect.nist.gov/old/expect-5.43.0.tar.bz2;
-    sha256 = "1j6vyr8lx1fbl641hkkd6hhh9ifniklskfv00pbvy33h86a3mrvn";
+    url = http://expect.nist.gov/old/expect-5.44.1.tar.gz;
+    sha256 = "13zxqiclzk1paxc0mr2vwp9nhfyr2mkwk9gs73fg0l3iss16n6p4";
   };
 
-  buildInputs = [tcl];
+  buildInputs = [tcl tk autoconf xproto libX11];
 
   #NIX_CFLAGS_COMPILE = "-DHAVE_UNISTD_H";
 
@@ -19,9 +19,13 @@ stdenv.mkDerivation {
 
   patchPhase = ''
     substituteInPlace configure --replace /bin/stty "$(type -tP stty)"
+    sed -e '1i\#include <tclInt.h>' -i exp_inter.c
   '';
   
-  configureFlags = "--with-tcl=${tcl}/lib --with-tclinclude=${tcl}/include";
+  configureFlags = ["--with-tcl=${tcl}/lib" 
+    "--with-tclinclude=${tcl}/include" 
+    "--with-tk=${tk}/lib"
+    "--exec-prefix=$out"];
 
   meta = {
     description = "A tool for automating interactive applications";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fc95f7ef0b0c..4153cdec7a86 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -625,7 +625,8 @@ let
   };
 
   expect = import ../tools/misc/expect {
-    inherit fetchurl stdenv tcl;
+    inherit fetchurl stdenv tcl tk autoconf;
+    inherit (xorg) xproto libX11;
   };
 
   fcron = import ../tools/system/fcron { # see also cron