diff --git a/bin/dev.dart b/bin/dev.dart
index e22cba9..034a416 100644
--- a/bin/dev.dart
+++ b/bin/dev.dart
@@ -6,7 +6,7 @@ import 'package:angel_framework/angel_framework.dart';
 import 'package:angel_hot/angel_hot.dart';
 import 'package:logging/logging.dart';
 
-main() async {
+void main() async {
   // Watch the config/ and web/ directories for changes, and hot-reload the server.
   hierarchicalLoggingEnabled = true;
 
diff --git a/bin/prod.dart b/bin/prod.dart
index db0ec67..fb7de39 100644
--- a/bin/prod.dart
+++ b/bin/prod.dart
@@ -25,6 +25,6 @@ import 'package:angel_production/angel_production.dart';
 // so in the meantime, visit the Angel chat for further questions:
 //
 // https://gitter.im/angel_dart/discussion
-main(List<String> args) =>
+void main(List<String> args) =>
     Runner('{{angel}}', configureServer, reflector: MirrorsReflector())
         .run(args);