diff --git a/mock_hardware.h b/mock_hardware.h
index a996896..574f1f7 100644
--- a/mock_hardware.h
+++ b/mock_hardware.h
@@ -22,6 +22,9 @@
     ON_CALL(*this, BootDevice())
       .WillByDefault(testing::Invoke(&fake_,
             &FakeHardware::BootDevice));
+    ON_CALL(*this, IsBootDeviceRemovable())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::IsBootDeviceRemovable));
     ON_CALL(*this, GetKernelDevices())
       .WillByDefault(testing::Invoke(&fake_,
             &FakeHardware::GetKernelDevices));
@@ -56,6 +59,7 @@
   // Hardware overrides.
   MOCK_CONST_METHOD0(BootKernelDevice, std::string());
   MOCK_CONST_METHOD0(BootDevice, std::string());
+  MOCK_CONST_METHOD0(IsBootDeviceRemovable, bool());
   MOCK_CONST_METHOD0(GetKernelDevices, std::vector<std::string>());
   MOCK_CONST_METHOD2(IsKernelBootable,
                bool(const std::string& kernel_device, bool* bootable));