diff --git a/pkgs/by-name/po/polkit/package.nix b/pkgs/by-name/po/polkit/package.nix
index f269b0ee61bb..f804931304d8 100644
--- a/pkgs/by-name/po/polkit/package.nix
+++ b/pkgs/by-name/po/polkit/package.nix
@@ -116,10 +116,10 @@ stdenv.mkDerivation rec {
     (python3.pythonOnBuildForHost.withPackages (
       pp: with pp; [
         dbus-python
-        (python-dbusmock.overridePythonAttrs (attrs: {
+        (python-dbusmock.override {
           # Avoid dependency cycle.
           doCheck = false;
-        }))
+        })
       ]
     ))
   ];
diff --git a/pkgs/development/python-modules/python-dbusmock/default.nix b/pkgs/development/python-modules/python-dbusmock/default.nix
index 804d40f32bfd..6465fb7014ac 100644
--- a/pkgs/development/python-modules/python-dbusmock/default.nix
+++ b/pkgs/development/python-modules/python-dbusmock/default.nix
@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  fetchpatch,
   runCommand,
 
   # build-system
@@ -12,6 +13,7 @@
   dbus-python,
 
   # checks
+  doCheck ? true,
   dbus,
   gobject-introspection,
   pygobject3,
@@ -40,6 +42,14 @@ buildPythonPackage rec {
     hash = "sha256-9YnMOQUuwAcrL0ZaQr7iGly9esZaSRIFThQRNUtSndo=";
   };
 
+  patches = lib.optionals doCheck [
+    (fetchpatch {
+      name = "networkmanager-1.54.2.patch";
+      url = "https://github.com/martinpitt/python-dbusmock/commit/1ce6196a687d324a55fbf1f74e0f66a4e83f7a15.patch";
+      hash = "sha256-Wo7AhmZu74cTHT9I36+NGGSU9dcFwmcDvtzgseTj/yA=";
+    })
+  ];
+
   build-system = [
     setuptools
     setuptools-scm
@@ -47,6 +57,8 @@ buildPythonPackage rec {
 
   dependencies = [ dbus-python ];
 
+  inherit doCheck;
+
   nativeCheckInputs = [
     dbus
     gobject-introspection