diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 2461cba..9b06e63 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -44,6 +44,7 @@
     output.writeUint64(frameNumber);
     output.writeInt32(overrideScalingMode);
     output.writeStrongBinder(IInterface::asBinder(barrierGbp));
+    output.writeStrongBinder(relativeLayerHandle);
     output.write(transparentRegion);
     return NO_ERROR;
 }
@@ -75,6 +76,7 @@
     overrideScalingMode = input.readInt32();
     barrierGbp =
         interface_cast<IGraphicBufferProducer>(input.readStrongBinder());
+    relativeLayerHandle = input.readStrongBinder();
     input.read(transparentRegion);
     return NO_ERROR;
 }