diff --git a/update_engine.gyp b/update_engine.gyp
index b09a401..20fb282 100644
--- a/update_engine.gyp
+++ b/update_engine.gyp
@@ -273,6 +273,7 @@
         'real_system_state.cc',
         'shill_proxy.cc',
         'update_attempter.cc',
+        'update_boot_flags_action.cc',
         'update_manager/boxed_value.cc',
         'update_manager/chromeos_policy.cc',
         'update_manager/default_policy.cc',
@@ -568,6 +569,7 @@
             'proxy_resolver_unittest.cc',
             'testrunner.cc',
             'update_attempter_unittest.cc',
+            'update_boot_flags_action_unittest.cc',
             'update_manager/boxed_value_unittest.cc',
             'update_manager/chromeos_policy_unittest.cc',
             'update_manager/evaluation_context_unittest.cc',