diff --git a/tahoe-lafs.nix b/tahoe-lafs.nix
index 3d8657d870e3e233f70c1ad72a1a4602533382ff..e325918418dbc745fda316a1e7950b749882d0cf 100644
--- a/tahoe-lafs.nix
+++ b/tahoe-lafs.nix
@@ -26,9 +26,6 @@ buildPythonPackage rec {
     do
       sed -i "$i" -e"s/localhost/127.0.0.1/g"
     done
-
-    sed -i 's/"zope.interface.*"/"zope.interface"/' src/allmydata/_auto_deps.py
-    sed -i 's/"pycrypto.*"/"pycrypto"/' src/allmydata/_auto_deps.py
   '';