diff --git a/SConstruct b/SConstruct
index aa7eb73..621c6a5 100644
--- a/SConstruct
+++ b/SConstruct
@@ -245,6 +245,7 @@
                    policy_manager/real_random_provider.cc
                    policy_manager/real_shill_provider.cc
                    policy_manager/real_state.cc
+                   policy_manager/real_system_provider.cc
                    policy_manager/real_time_provider.cc
                    postinstall_runner_action.cc
                    prefs.cc
@@ -303,8 +304,9 @@
                             policy_manager/policy_manager_unittest.cc
                             policy_manager/real_random_provider_unittest.cc
                             policy_manager/real_shill_provider_unittest.cc
-                            policy_manager/real_time_provider_unittest.cc
                             policy_manager/real_state_unittest.cc
+                            policy_manager/real_system_provider_unittest.cc
+                            policy_manager/real_time_provider_unittest.cc
                             policy_manager/variable_unittest.cc
                             postinstall_runner_action_unittest.cc
                             prefs_unittest.cc