diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 963d755..7c60e0f 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -173,6 +173,7 @@
         "Scheduler/VSyncDispatchTimerQueue.cpp",
         "Scheduler/VSyncPredictor.cpp",
         "Scheduler/VSyncModulator.cpp",
+        "Scheduler/VSyncReactor.cpp",
         "StartPropertySetThread.cpp",
         "SurfaceFlinger.cpp",
         "SurfaceFlingerDefaultFactory.cpp",