diff --git a/pkgs/development/python-modules/process-tests/default.nix b/pkgs/development/python-modules/process-tests/default.nix
new file mode 100644
index 000000000000..8f8bbc59d4fe
--- /dev/null
+++ b/pkgs/development/python-modules/process-tests/default.nix
@@ -0,0 +1,24 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "process-tests";
+  version = "1.2.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "65c9d7a0260f31c15b4a22a851757e61f7072d0557db5f8a976112fbe81ff7e9";
+  };
+
+  # No tests
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Tools for testing processes";
+    license = licenses.bsd2;
+    homepage = https://github.com/ionelmc/python-process-tests;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5b808735799b..5d31caa7b146 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3431,25 +3431,7 @@ in {
 
   pynzb = callPackage ../development/python-modules/pynzb { };
 
-  process-tests = buildPythonPackage rec {
-    pname = "process-tests";
-    name = "${pname}-${version}";
-    version = "1.2.1";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/p/${pname}/${name}.tar.gz";
-      sha256 = "65c9d7a0260f31c15b4a22a851757e61f7072d0557db5f8a976112fbe81ff7e9";
-    };
-
-    # No tests
-    doCheck = false;
-
-    meta = {
-      description = "Tools for testing processes";
-      license = licenses.bsd2;
-      homepage = https://github.com/ionelmc/python-process-tests;
-    };
-  };
+  process-tests = callPackage ../development/python-modules/process-tests { };
 
   progressbar = callPackage ../development/python-modules/progressbar {};