diff --git a/tasks/build_task.js b/tasks/build_task.js
index 0ca987ddf38..364c3dc797c 100644
--- a/tasks/build_task.js
+++ b/tasks/build_task.js
@@ -11,6 +11,7 @@ module.exports = function(grunt) {
     'copy:public_to_gen',
     'typescript:build',
     'karma:test',
+    'phantomjs',
     'css',
     'htmlmin:build',
     'ngtemplates',
diff --git a/tasks/default_task.js b/tasks/default_task.js
index 03f1b667941..8c11631d0e4 100644
--- a/tasks/default_task.js
+++ b/tasks/default_task.js
@@ -9,6 +9,7 @@ module.exports = function(grunt) {
     'tslint',
     'clean:gen',
     'copy:public_to_gen',
+    'phantomjs',
     'css',
     'typescript:build'
   ]);