diff --git a/hwc3/Utils.h b/hwc3/Utils.h
index b322f5d..642c777 100644
--- a/hwc3/Utils.h
+++ b/hwc3/Utils.h
@@ -16,6 +16,7 @@
 
 #pragma once
 
+#include <aidl/android/hardware/graphics/common/Hdr.h>
 #include <aidl/android/hardware/graphics/composer3/IComposerClient.h>
 #include <hardware/hwcomposer2.h>
 #include <log/log.h>
@@ -165,4 +166,12 @@
   return static_cast<int32_t>(dataspace);
 }
 
-};  // namespace aidl::android::hardware::graphics::composer3
\ No newline at end of file
+// Values appear to match.
+// https://cs.android.com/android/platform/superproject/main/+/main:hardware/interfaces/graphics/common/aidl/android/hardware/graphics/common/Hdr.aidl
+// https://cs.android.com/android/platform/superproject/main/+/main:system/core/libsystem/include/system/graphics-base-v1.0.h;l=130;drc=7d940ae4afa450696afa25e07982f3a95e17e9b2
+// https://cs.android.com/android/platform/superproject/main/+/main:system/core/libsystem/include/system/graphics-base-v1.2.h;l=12;drc=af7be7616859f8e9e57710b9c37c66cf880a6643
+inline common::Hdr Hwc2HdrTypeToHwc3(int32_t hdr_type) {
+  return static_cast<common::Hdr>(hdr_type);
+}
+
+};  // namespace aidl::android::hardware::graphics::composer3