diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index fb42cc0..10ab3b4 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -202,6 +202,7 @@
         "SurfaceFlingerDefaultFactory.cpp",
         "SurfaceInterceptor.cpp",
         "Tracing/LayerTracing.cpp",
+        "Tracing/TransactionTracing.cpp",
         "Tracing/TransactionProtoParser.cpp",
         "TransactionCallbackInvoker.cpp",
         "TunnelModeEnabledReporter.cpp",