diff --git a/pkgs/development/python-modules/slixmpp/default.nix b/pkgs/development/python-modules/slixmpp/default.nix
index 0a8e5accea8..88c43bce297 100644
--- a/pkgs/development/python-modules/slixmpp/default.nix
+++ b/pkgs/development/python-modules/slixmpp/default.nix
@@ -1,12 +1,13 @@
-{ lib, buildPythonPackage, pythonOlder, fetchurl, aiodns, pyasn1, pyasn1-modules, gnupg }:
+{ lib, buildPythonPackage, fetchPypi, pythonOlder, fetchurl, aiodns, pyasn1, pyasn1-modules, gnupg }:
+
 buildPythonPackage rec {
-  name = "slixmpp-${version}";
+  pname = "slixmpp";
   version = "1.4.0";
 
   disabled = pythonOlder "3.4";
 
-  src = fetchurl {
-    url = "mirror://pypi/s/slixmpp/${name}.tar.gz";
+  src = fetchPypi {
+    inherit pname version;
     sha256 = "155qxx4xlkkjb4hphc09nsi2mi4xi3m2akg0z7064kj3nbzkwjn2";
   };
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index fd96843d933..9cba5f5a9d2 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2951,7 +2951,7 @@ in {
 
   sleekxmpp = callPackage ../development/python-modules/sleekxmpp { };
 
-  slixmpp = callPackage ../development/python-modules/slixmpp {};
+  slixmpp = callPackage ../development/python-modules/slixmpp { };
 
   netaddr = buildPythonPackage rec {
     pname = "netaddr";