diff --git a/hwc2_device/HwcDisplay.h b/hwc2_device/HwcDisplay.h
index 01ea33d..24c7465 100644
--- a/hwc2_device/HwcDisplay.h
+++ b/hwc2_device/HwcDisplay.h
@@ -284,6 +284,7 @@
   android_color_transform_t color_transform_hint_{};
   int32_t content_type_{};
   Colorspace colorspace_{};
+  std::shared_ptr<hdr_output_metadata> hdr_metadata_;
 
   std::shared_ptr<DrmKmsPlan> current_plan_;
 
@@ -297,6 +298,7 @@
   HWC2::Error Init();
 
   HWC2::Error SetActiveConfigInternal(uint32_t config, int64_t change_time);
+  HWC2::Error SetHdrOutputMetadata(ui::Hdr hdrType);
   auto GetEdid() -> EdidWrapperUnique & {
     return GetPipe().connector->Get()->GetParsedEdid();
   }