diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index aa93808..25d9b2b 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1730,6 +1730,12 @@
     s.what |= DisplayState::eLayerStackChanged;
 }
 
+void SurfaceComposerClient::Transaction::setDisplayFlags(const sp<IBinder>& token, uint32_t flags) {
+    DisplayState& s(getDisplayState(token));
+    s.flags = flags;
+    s.what |= DisplayState::eFlagsChanged;
+}
+
 void SurfaceComposerClient::Transaction::setDisplayProjection(const sp<IBinder>& token,
                                                               ui::Rotation orientation,
                                                               const Rect& layerStackRect,