diff --git a/pkgs/development/python-modules/watchdog/default.nix b/pkgs/development/python-modules/watchdog/default.nix
new file mode 100644
index 000000000000..1e5e5653b9d8
--- /dev/null
+++ b/pkgs/development/python-modules/watchdog/default.nix
@@ -0,0 +1,32 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, argh
+, pathtools
+, pyyaml
+, pkgs
+}:
+
+buildPythonPackage rec {
+  pname = "watchdog";
+  version = "0.8.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0qj1vqszxwfx6d1s66s96jmfmy2j94bywxiqdydh6ikpvcm8hrby";
+  };
+
+  buildInputs = stdenv.lib.optionals stdenv.isDarwin
+    [ pkgs.darwin.apple_sdk.frameworks.CoreServices pkgs.darwin.cf-private ];
+  propagatedBuildInputs = [ argh pathtools pyyaml ];
+
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Python API and shell utilities to monitor file system events";
+    homepage = https://github.com/gorakhargosh/watchdog;
+    license = licenses.asl20;
+    maintainers = with maintainers; [ goibhniu ];
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a386448dc7f9..4220846ffec7 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2193,29 +2193,7 @@ in {
 
   setuptools-git = callPackage ../development/python-modules/setuptools-git { };
 
-  watchdog = buildPythonPackage rec {
-    name = "watchdog-${version}";
-    version = "0.8.3";
-
-    propagatedBuildInputs = with self; [ argh pathtools pyyaml ];
-
-    buildInputs = stdenv.lib.optionals stdenv.isDarwin
-      [ pkgs.darwin.apple_sdk.frameworks.CoreServices pkgs.darwin.cf-private ];
-
-    doCheck = false;
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/w/watchdog/${name}.tar.gz";
-      sha256 = "0qj1vqszxwfx6d1s66s96jmfmy2j94bywxiqdydh6ikpvcm8hrby";
-    };
-
-    meta = {
-      description = "Python API and shell utilities to monitor file system events";
-      homepage = https://github.com/gorakhargosh/watchdog;
-      license = licenses.asl20;
-      maintainers = with maintainers; [ goibhniu ];
-    };
-  };
+  watchdog = callPackage ../development/python-modules/watchdog { };
 
   pywatchman = callPackage ../development/python-modules/pywatchman { };