diff --git a/pkgs/development/python-modules/cryptacular/default.nix b/pkgs/development/python-modules/cryptacular/default.nix
new file mode 100644
index 000000000000..e81426a892d6
--- /dev/null
+++ b/pkgs/development/python-modules/cryptacular/default.nix
@@ -0,0 +1,22 @@
+{ stdenv, buildPythonPackage, fetchPypi
+, coverage, nose, pbkdf2 }:
+
+buildPythonPackage rec {
+  pname = "cryptacular";
+  version = "1.4.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "18fl7phl6r9xiwz8f1jpkahkv21wimmiq72gmrqncccv7z806gr7";
+  };
+
+  buildInputs = [ coverage nose ];
+  propagatedBuildInputs = [ pbkdf2 ];
+
+  # TODO: tests fail: TypeError: object of type 'NoneType' has no len()
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    maintainers = with maintainers; [ domenkozar ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 14393c3c5784..2a85b1b33b21 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1663,24 +1663,7 @@ in {
 
   cytoolz = callPackage ../development/python-modules/cytoolz { };
 
-  cryptacular = buildPythonPackage rec {
-    name = "cryptacular-1.4.1";
-
-    buildInputs = with self; [ coverage nose ];
-    propagatedBuildInputs = with self; [ pbkdf2 ];
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/c/cryptacular/${name}.tar.gz";
-      sha256 = "273f03d03f9b316671ae4f1c1c6b8d3c883da19a5706873e8f3d6543e13dd4a1";
-    };
-
-    # TODO: tests fail: TypeError: object of type 'NoneType' has no len()
-    doCheck = false;
-
-    meta = {
-      maintainers = with maintainers; [ domenkozar ];
-    };
-  };
+  cryptacular = callPackage ../development/python-modules/cryptacular { };
 
   cryptography = callPackage ../development/python-modules/cryptography { };