diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index f14bef3..b91dece 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -284,8 +284,8 @@
      // allow initial power mode as null.
     std::optional<hardware::graphics::composer::hal::PowerMode> mPowerMode;
     DisplayModePtr mActiveMode;
-    std::optional<float> mStagedBrightness = std::nullopt;
-    float mBrightness = -1.f;
+    std::optional<float> mStagedBrightness;
+    std::optional<float> mBrightness;
     const DisplayModes mSupportedModes;
 
     std::atomic<nsecs_t> mLastHwVsync = 0;