diff --git a/cl-sasl.nix b/cl-sasl.nix
index 16f01af..017736f 100644
--- a/cl-sasl.nix
+++ b/cl-sasl.nix
@@ -1,4 +1,4 @@
-{ pkgs, lib, ... }
+{ pkgs, lib, buildLisp, ... }
 
 let
   cl-sasl-path = lib.fetchgit {
diff --git a/cl-xmpp.nix b/cl-xmpp.nix
index d3400a9..4626b4f 100644
--- a/cl-xmpp.nix
+++ b/cl-xmpp.nix
@@ -1,4 +1,4 @@
-{ pkgs, lib, cl-sasl, unstablePkgs, ... }:
+{ pkgs, lib, cl-sasl, buildLisp, ... }:
 
 let
   cl-xmpp-path = lib.fetchgit {
@@ -10,7 +10,7 @@ let
 
 in {
 
-  cl-xmpp = lib.buildLisp.library {
+  cl-xmpp = buildLisp.library {
     name = "cl-xmpp";
     srcs = [
       "${cl-xmpp-path}/package.lisp"
@@ -28,7 +28,7 @@ in {
     ];
   };
 
-  cl-xmpp-sasl = lib.buildLisp.library {
+  cl-xmpp-sasl = buildLisp.library {
     name = "cl-xmpp-sasl";
     src = [
       "${cl-xmpp-path}/cl-xmpp-sasl.lisp"
@@ -40,7 +40,7 @@ in {
     ];
   };
 
-  cl-xmpp-tls = lib.buildLisp.library {
+  cl-xmpp-tls = buildLisp.library {
     name = "cl-xmpp-tls";
     src = [
       "${cl-xmpp-path}/cl-xmpp-tls.lisp"
diff --git a/default.nix b/default.nix
index a8434c4..7436dba 100644
--- a/default.nix
+++ b/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, lib, unstable-pkgs, ... }:
+{ pkgs, lib, unstablePkgs, buildLisp, ... }:
 
 with lib;
 rec {