diff --git a/pkgs/applications/misc/udiskie/default.nix b/pkgs/applications/misc/udiskie/default.nix
index 8c6dfe24772..f3dc92605f3 100644
--- a/pkgs/applications/misc/udiskie/default.nix
+++ b/pkgs/applications/misc/udiskie/default.nix
@@ -5,7 +5,6 @@
 , docopt
 , pygobject3
 , pyyaml
-, ...
 }:
 
 buildPythonApplication rec {
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 00daeacf7ed..b695372fe96 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -16352,8 +16352,8 @@ EOF
     };
   };
 
-  # For backwards compatibility. Please use nixpkgs.udiskie instead.
-  udiskie = toPythonModule (pkgs.udiskie.override { pythonPackages = self; });
+  # added 2018-05-23, can be removed once 18.09 is branched off
+  udiskie = throw "pythonPackages.udiskie has been replaced by udiskie";
 
   # Should be bumped along with EFL!
   pythonefl = buildPythonPackage rec {