diff --git a/pkgs/development/python-modules/lizard/default.nix b/pkgs/development/python-modules/lizard/default.nix
index 7a6ab4917550..0d9b2aeb2460 100644
--- a/pkgs/development/python-modules/lizard/default.nix
+++ b/pkgs/development/python-modules/lizard/default.nix
@@ -12,7 +12,6 @@
 buildPythonPackage rec {
   pname = "lizard";
   version = "1.20.0";
-  version = "1.20.0";
   format = "setuptools";
 
   src = fetchFromGitHub {