diff --git a/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix b/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
index ea3ef08a2cdf..111f4e728e78 100644
--- a/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
@@ -12,14 +12,15 @@ python2Packages.buildPythonApplication rec {
     sha256 = "1lmhbpwsqh1v93krlqqhafw2pc3y0qp8zby186yllbph6s8kdp35";
   };
 
-  propagatedBuildInputs = with python2Packages; [ msgpack pyqt4 numpy pyopencl ] ++ [ openssl ];
+  propagatedBuildInputs = with python2Packages; [ msgpack pyqt4 numpy pyopencl setuptools ] ++ [ openssl ];
 
   preConfigure = ''
     # Remove interaction and misleading output
     substituteInPlace setup.py \
       --replace "nothing = raw_input()" pass \
       --replace 'print "It looks like building the package failed.\n" \' pass \
-      --replace '    "You may be missing a C++ compiler and the OpenSSL headers."' pass
+      --replace '    "You may be missing a C++ compiler and the OpenSSL headers."' pass \
+      --replace 'msgpack-python' 'msgpack'
 
     substituteInPlace src/pyelliptic/openssl.py \
       --replace "libdir.append(find_library('ssl'))" "libdir.append('${openssl.out}/lib/libssl.so')"