diff --git a/pkgs/development/python2-modules/attrs/default.nix b/pkgs/development/python2-modules/attrs/default.nix
index 4b10f4203e8b..f4b4b505721f 100644
--- a/pkgs/development/python2-modules/attrs/default.nix
+++ b/pkgs/development/python2-modules/attrs/default.nix
@@ -32,10 +32,6 @@ buildPythonPackage rec {
   # Instead, we do this as a passthru.tests test.
   doCheck = false;
 
-  passthru.tests = {
-    pytest = callPackage ./tests.nix { };
-  };
-
   meta = with lib; {
     description = "Python attributes without boilerplate";
     homepage = "https://github.com/hynek/attrs";