diff --git a/engine/src/flutter/build/flutter_app.gni b/engine/src/flutter/build/flutter_app.gni
index 9240930c021..69285b4951f 100644
--- a/engine/src/flutter/build/flutter_app.gni
+++ b/engine/src/flutter/build/flutter_app.gni
@@ -53,7 +53,7 @@ template("flutter_app") {
   flutter_tools_gen_dir = get_label_info(flutter_tools_label, "target_gen_dir")
   flutter_tools_name = get_label_info(flutter_tools_label, "name")
   flutter_tools_packages = "$flutter_tools_gen_dir/$flutter_tools_name.packages"
-  flutter_tools_main = "$flutter_tools_label/bin/flutter_tools.dart"
+  flutter_tools_main = "$flutter_tools_label/bin/fuchsia_builder.dart"
 
   dot_packages = "$target_gen_dir/$dart_package_name.packages"
   bundle_path = "$root_out_dir/$bundle_name"
diff --git a/engine/src/flutter/build/package.py b/engine/src/flutter/build/package.py
index e5334ec611a..205d259e866 100755
--- a/engine/src/flutter/build/package.py
+++ b/engine/src/flutter/build/package.py
@@ -46,8 +46,6 @@ def main():
     args.dart,
     '--packages=%s' % args.flutter_tools_packages,
     args.flutter_tools_main,
-    'build',
-    'mojo',
     '--snapshotter-path=%s' % args.snapshotter_path,
     '--working-dir=%s' % args.working_dir,
     '--target=%s' % args.main_dart,