diff --git a/cl-sasl.nix b/cl-sasl.nix
index 905d55b..16f01af 100644
--- a/cl-sasl.nix
+++ b/cl-sasl.nix
@@ -1,4 +1,4 @@
-{ pkgs, lib, fudoLispPackages, ... }
+{ pkgs, lib, ... }
 
 let
   cl-sasl-path = lib.fetchgit {
diff --git a/cl-xmpp.nix b/cl-xmpp.nix
index b0e8706..d3400a9 100644
--- a/cl-xmpp.nix
+++ b/cl-xmpp.nix
@@ -1,8 +1,6 @@
-{ pkgs, lib, cl-sasl, ... }:
+{ pkgs, lib, cl-sasl, unstablePkgs, ... }:
 
 let
-  unstablePkgs = import <nixos-unstable> {};
-
   cl-xmpp-path = lib.fetchgit {
     url = "https://github.com/j4yk/cl-xmpp.git";
     rev = "a0f206e583c72d80523bdf108e7d507597555c6d";
diff --git a/default.nix b/default.nix
index 08b3d3f..a8434c4 100644
--- a/default.nix
+++ b/default.nix
@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ pkgs, lib, unstable-pkgs, ... }:
 
 with lib;
 rec {