diff --git a/pkgs/development/python-modules/cryptography_vectors/default.nix b/pkgs/development/python-modules/cryptography_vectors/default.nix
new file mode 100644
index 000000000000..5c04bd8ba938
--- /dev/null
+++ b/pkgs/development/python-modules/cryptography_vectors/default.nix
@@ -0,0 +1,18 @@
+{ buildPythonPackage
+, fetchPypi
+, cryptography
+}:
+
+buildPythonPackage rec {
+  # also bump cryptography
+  pname = "cryptography_vectors";
+  version = cryptography.version;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "beb831aa73663a224f4d7520483ed02da544533bb03b26ec07a5f9a0dd0941e1";
+  };
+
+  # No tests included
+  doCheck = false;
+}
\ No newline at end of file
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 87c96d56e9b3..e8f4baeb9538 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2841,20 +2841,7 @@ in {
     __impureHostDeps = [ "/usr/lib" ];
   };
 
-  cryptography_vectors = buildPythonPackage rec {
-      # also bump cryptography
-    pname = "cryptography_vectors";
-    version = self.cryptography.version;
-    name = "${pname}-${version}";
-
-    src = fetchPypi {
-      inherit pname version;
-      sha256 = "beb831aa73663a224f4d7520483ed02da544533bb03b26ec07a5f9a0dd0941e1";
-    };
-
-    # No tests included
-    doCheck = false;
-  };
+  cryptography_vectors = callPackage ../development/python-modules/cryptography_vectors { };
 
   curtsies = callPackage ../development/python-modules/curtsies { };