diff --git a/Android.bp b/Android.bp
index c4777d1..5a6a79b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -2561,6 +2561,7 @@
     "src/tracing/test/tracing_integration_test.cc",
     "tools/ftrace_proto_gen/ftrace_proto_gen.cc",
     "tools/ftrace_proto_gen/ftrace_proto_gen_unittest.cc",
+    "tools/ftrace_proto_gen/proto_gen_utils.cc",
     "tools/sanitizers_unittests/sanitizers_unittest.cc",
   ],
   shared_libs: [