diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 9b06e63..573f685 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -45,6 +45,8 @@
     output.writeInt32(overrideScalingMode);
     output.writeStrongBinder(IInterface::asBinder(barrierGbp));
     output.writeStrongBinder(relativeLayerHandle);
+    output.writeStrongBinder(parentHandleForChild);
+    output.writeStrongBinder(childHandle);
     output.write(transparentRegion);
     return NO_ERROR;
 }
@@ -77,6 +79,8 @@
     barrierGbp =
         interface_cast<IGraphicBufferProducer>(input.readStrongBinder());
     relativeLayerHandle = input.readStrongBinder();
+    parentHandleForChild = input.readStrongBinder();
+    childHandle = input.readStrongBinder();
     input.read(transparentRegion);
     return NO_ERROR;
 }