diff --git a/boot_control_chromeos.h b/boot_control_chromeos.h
index 6f5497b..6002712 100644
--- a/boot_control_chromeos.h
+++ b/boot_control_chromeos.h
@@ -48,6 +48,7 @@
                           std::string* device) const override;
   bool IsSlotBootable(BootControlInterface::Slot slot) const override;
   bool MarkSlotUnbootable(BootControlInterface::Slot slot) override;
+  bool SetActiveBootSlot(BootControlInterface::Slot slot) override;
   bool MarkBootSuccessfulAsync(base::Callback<void(bool)> callback) override;
 
  private: