diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 8a667ae..3f3d2c6 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -199,6 +199,7 @@
     name: "libsurfaceflinger_sources",
     srcs: [
         ":libsurfaceflinger_backend_sources",
+        "ActivePictureUpdater.cpp",
         "BackgroundExecutor.cpp",
         "Client.cpp",
         "ClientCache.cpp",