diff --git a/pkgs/development/python-modules/duckdb/default.nix b/pkgs/development/python-modules/duckdb/default.nix
index 17b11e9e731c..030da79204f7 100644
--- a/pkgs/development/python-modules/duckdb/default.nix
+++ b/pkgs/development/python-modules/duckdb/default.nix
@@ -108,10 +108,8 @@ buildPythonPackage rec {
   ]
   ++ optional-dependencies.all;
 
-  pytestFlags = [ "--verbose" ];
-
   # test flags from .github/workflows/Python.yml
-  pytestFlagsArray = [ "--verbose" ];
+  pytestFlags = [ "--verbose" ];
   enabledTestPaths = if stdenv.hostPlatform.isDarwin then [ "tests/fast" ] else [ "tests" ];
 
   disabledTestPaths = [