diff --git a/pkgs/development/python-modules/plyplus/default.nix b/pkgs/development/python-modules/plyplus/default.nix
index 4b9f1a9a0841..209985815ffc 100644
--- a/pkgs/development/python-modules/plyplus/default.nix
+++ b/pkgs/development/python-modules/plyplus/default.nix
@@ -1,10 +1,11 @@
 { lib, fetchPypi, buildPythonPackage, ply, isPy3k }:
 buildPythonPackage rec {
-  pname = "PlyPlus";
+  pname = "plyplus";
   version = "0.7.5";
 
   src = fetchPypi {
-    inherit pname version;
+    pname = "PlyPlus";
+    inherit version;
     sha256 = "0g3flgfm3jpb2d8v9z0qmbwca5gxdqr10cs3zvlfhv5cs06ahpnp";
   };