diff --git a/default.nix b/default.nix
index 4a79742..e0009a4 100644
--- a/default.nix
+++ b/default.nix
@@ -3,9 +3,9 @@
 with pkgs;
 
 let
-  buildGradle = callPackage ./gradle.nix {};
+  buildGradlePackage = callPackage ./gradle.nix {};
 
-  gradle2nix = buildGradle {
+  gradle2nix = buildGradlePackage {
     pname = "gradle2nix";
     version = "2.0.0";
     lockFile = ./gradle.lock;
@@ -33,7 +33,7 @@ let
     '';
 
     passthru = {
-      build = buildGradle;
+      inherit buildGradlePackage;
       plugin = "${gradle2nix}/share/plugin.jar";
     };
 
diff --git a/flake.nix b/flake.nix
index 1ccebb5..d8bfb58 100644
--- a/flake.nix
+++ b/flake.nix
@@ -12,6 +12,8 @@
         pkgs = nixpkgs.legacyPackages.${system};
 
       in {
+        builders.default = pkgs.callPackage ./gradle.nix {};
+
         packages.default = pkgs.callPackage ./default.nix {};
 
         apps.default = {
diff --git a/gradle.nix b/gradle.nix
index 509a3e5..71be006 100644
--- a/gradle.nix
+++ b/gradle.nix
@@ -280,7 +280,7 @@ let
       '';
 
 
-  buildGradle = stdenv.mkDerivation (finalAttrs: {
+  buildGradlePackage = stdenv.mkDerivation (finalAttrs: {
 
     inherit buildJdk enableParallelBuilding enableDebug gradle gradleFlags pname version;
 
@@ -328,4 +328,4 @@ let
   ]);
 
 in
-buildGradle
+buildGradlePackage