diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 4d84144..716e3dc 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -59,6 +59,7 @@
 #include "Scheduler/DispSync.h"
 #include "Scheduler/EventThread.h"
 #include "Scheduler/MessageQueue.h"
+#include "Scheduler/PhaseOffsets.h"
 #include "Scheduler/RefreshRateStats.h"
 #include "Scheduler/Scheduler.h"
 #include "Scheduler/VSyncModulator.h"
@@ -942,7 +943,10 @@
     std::unique_ptr<EventControlThread> mEventControlThread;
     std::unordered_map<DisplayId, sp<IBinder>> mPhysicalDisplayTokens;
 
+    // Calculates correct offsets.
     VSyncModulator mVsyncModulator;
+    // Keeps track of all available phase offsets for different refresh types.
+    std::unique_ptr<scheduler::PhaseOffsets> mPhaseOffsets;
 
     // Can only accessed from the main thread, these members
     // don't need synchronization