diff --git a/pkgs/development/python-modules/stem/default.nix b/pkgs/development/python-modules/stem/default.nix
new file mode 100644
index 000000000000..68ad178bd4b0
--- /dev/null
+++ b/pkgs/development/python-modules/stem/default.nix
@@ -0,0 +1,18 @@
+{ lib, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "stem";
+  version = "1.6.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1va9p3ij7lxg6ixfsvaql06dn11l3fgpxmss1dhlvafm7sqizznp";
+  };
+
+  meta = with lib; {
+    description = "Controller library that allows applications to interact with Tor";
+    homepage = https://stem.torproject.org/;
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ phreedom ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5a5012f10d11..431ae02c9fdf 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6324,23 +6324,7 @@ in {
 
   schema = callPackage ../development/python-modules/schema {};
 
-  stem = buildPythonPackage rec {
-    name = "stem-${version}";
-    version = "1.6.0";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/s/stem/${name}.tar.gz";
-      sha256 = "1va9p3ij7lxg6ixfsvaql06dn11l3fgpxmss1dhlvafm7sqizznp";
-    };
-
-    meta = {
-      description = "Controller library that allows applications to interact with Tor (https://www.torproject.org/";
-      homepage = https://stem.torproject.org/;
-      license = licenses.gpl3;
-      maintainers = with maintainers; [ phreedom ];
-    };
-
-  };
+  stem = callPackage ../development/python-modules/stem { };
 
   svg-path = buildPythonPackage rec {
     name = "svg.path-${version}";