diff --git a/pkgs/development/python-modules/kaptan/default.nix b/pkgs/development/python-modules/kaptan/default.nix
new file mode 100644
index 000000000000..af24471d68de
--- /dev/null
+++ b/pkgs/development/python-modules/kaptan/default.nix
@@ -0,0 +1,26 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, pyyaml
+}:
+
+buildPythonPackage rec {
+  pname = "kaptan";
+  version = "0.5.8";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1b8r86yyvdvyxd6f10mhkl6cr2jhxm80jjqr4zch96w9hs9rh5vq";
+  };
+
+  propagatedBuildInputs = [ pyyaml ];
+
+  meta = with stdenv.lib; {
+    description = "Configuration manager for python applications";
+    homepage = https://emre.github.io/kaptan/;
+    license = licenses.bsd3;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ jgeerds ];
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index ee1cf9b69118..c916473b8e39 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2324,25 +2324,7 @@ in {
 
   pillowfight = callPackage ../development/python-modules/pillowfight { };
 
-  kaptan = buildPythonPackage rec {
-    name = "kaptan-${version}";
-    version = "0.5.8";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/k/kaptan/${name}.tar.gz";
-      sha256 = "1b8r86yyvdvyxd6f10mhkl6cr2jhxm80jjqr4zch96w9hs9rh5vq";
-    };
-
-    propagatedBuildInputs = with self; [ pyyaml ];
-
-    meta = with stdenv.lib; {
-      description = "Configuration manager for python applications";
-      homepage = https://emre.github.io/kaptan/;
-      license = licenses.bsd3;
-      platforms = platforms.linux;
-      maintainers = with maintainers; [ jgeerds ];
-    };
-  };
+  kaptan = callPackage ../development/python-modules/kaptan { };
 
   keepalive = buildPythonPackage rec {
     name = "keepalive-${version}";