diff --git a/build-uberjar.sh b/build-uberjar.sh
deleted file mode 100644
index a2a79ff..0000000
--- a/build-uberjar.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-TARGET=$1
-CLASSPATH=$2
-
-HOME=$TARGET/home
-mkdir -p $HOME
-clojure -Scp $CLASSPATH -Sdeps ${FIXME} -T:build lib-uberjar :project $PROJECT :target $TARGET :version $VERSION
diff --git a/mkClojureLib.nix b/mkClojureLib.nix
index bd28956..90134b8 100644
--- a/mkClojureLib.nix
+++ b/mkClojureLib.nix
@@ -1,5 +1,5 @@
-{ lib, mkDerivation, callPackage, jre, ruby, clojure, build-tools-jar
-, writeScript, writeText, readFile, ... }:
+{ lib, stdenv, callPackage, jre, ruby, clojure, build-tools-jar, writeScript
+, writeText, ... }:
 { src, name, group, version, clj-deps, src-paths, ... }:
 
 with lib;
@@ -30,7 +30,7 @@ let
 
   target = "$TEMP/target";
 
-in mkDerivation {
+in stdenv.mkDerivation {
   name = name;
 
   src = src;