diff --git a/pkgs/development/interpreters/python/mk-python-derivation.nix b/pkgs/development/interpreters/python/mk-python-derivation.nix
index 4c45d9603be82..b3c609fc23252 100644
--- a/pkgs/development/interpreters/python/mk-python-derivation.nix
+++ b/pkgs/development/interpreters/python/mk-python-derivation.nix
@@ -309,7 +309,7 @@ let
 
     # Python packages don't have a checkPhase, only an installCheckPhase
     doCheck = false;
-    doInstallCheck = attrs.doCheck or true;
+    doInstallCheck = doCheck;
     nativeInstallCheckInputs = [
     ] ++ optionals (format' == "setuptools") [
       # Longer-term we should get rid of this and require
diff --git a/pkgs/development/python-modules/pytest-datadir/default.nix b/pkgs/development/python-modules/pytest-datadir/default.nix
index 4adaee73ceaee..32e3742644fa9 100644
--- a/pkgs/development/python-modules/pytest-datadir/default.nix
+++ b/pkgs/development/python-modules/pytest-datadir/default.nix
@@ -28,6 +28,8 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [ pytestCheckHook ];
 
+  doCheck = true;
+
   pythonImportsCheck = [ "pytest_datadir" ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/sphinxcontrib-jquery/default.nix b/pkgs/development/python-modules/sphinxcontrib-jquery/default.nix
index fef662c85daef..74b0a8a24f5c2 100644
--- a/pkgs/development/python-modules/sphinxcontrib-jquery/default.nix
+++ b/pkgs/development/python-modules/sphinxcontrib-jquery/default.nix
@@ -33,6 +33,8 @@ buildPythonPackage rec {
     })
   ];
 
+  doCheck = true;
+
   nativeBuildInputs = [
     flit-core
   ];