diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f3352370e19..16b13f9b43d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10096,8 +10096,6 @@ in
 
   slowaes = pythonPackages.slowaes;
 
-  twisted = pythonPackages.twisted;
-
   yolk = callPackage ../development/python-modules/yolk {};
 
   ZopeInterface = pythonPackages.zope_interface;