diff --git a/boot_control_android.h b/boot_control_android.h
index c909134..0b042e3 100644
--- a/boot_control_android.h
+++ b/boot_control_android.h
@@ -51,6 +51,7 @@
   bool MarkSlotUnbootable(BootControlInterface::Slot slot) override;
   bool SetActiveBootSlot(BootControlInterface::Slot slot) override;
   bool MarkBootSuccessfulAsync(base::Callback<void(bool)> callback) override;
+  bool IsSlotMarkedSuccessful(BootControlInterface::Slot slot) const override;
   DynamicPartitionControlInterface* GetDynamicPartitionControl() override;
 
  private: