diff --git a/system_state.cc b/system_state.cc
index 57483ea..0053fed 100644
--- a/system_state.cc
+++ b/system_state.cc
@@ -12,7 +12,8 @@
 
 RealSystemState::RealSystemState()
     : device_policy_(NULL),
-      connection_manager_(this) {}
+      connection_manager_(this),
+      metrics_lib_(NULL) {}
 
 bool RealSystemState::IsOOBEComplete() {
   return file_util::PathExists(FilePath(kOOBECompletedMarker));
@@ -31,4 +32,12 @@
   return &connection_manager_;
 }
 
+void RealSystemState::set_metrics_lib(MetricsLibraryInterface* metrics_lib) {
+  metrics_lib_ = metrics_lib;
+}
+
+MetricsLibraryInterface* RealSystemState::metrics_lib() {
+  return metrics_lib_;
+}
+
 }  // namespace chromeos_update_engine