diff --git a/.travis.yml b/.travis.yml
index 9e27d1fe3ed..bf673de7554 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,5 @@
 language: dart
+dart:
+  - dev
 sudo: false
 script: ./tool/travis.sh
diff --git a/tutorial.md b/tutorial.md
index d788dc7a3c2..c93a15af7a8 100644
--- a/tutorial.md
+++ b/tutorial.md
@@ -160,7 +160,7 @@ class TutorialHome extends StatelessComponent {
         child: new Text('Hello, world!')
       ),
       floatingActionButton: new FloatingActionButton(
-        child: new Icon(type: 'content/add', size: 24)
+        child: new Icon(type: 'content/add')
       )
     );
   }