diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index f063aaf..ad2e895 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -507,6 +507,9 @@
     bool mBootFinished;
     bool mForceFullDamage;
     FenceTracker mFenceTracker;
+#ifdef USE_HWC2
+    bool mPropagateBackpressure = true;
+#endif
 
     // these are thread safe
     mutable MessageQueue mEventQueue;