diff --git a/Android.bp b/Android.bp
index 2af83bc..4bfaa94 100644
--- a/Android.bp
+++ b/Android.bp
@@ -4599,6 +4599,7 @@
     "src/trace_processor/metrics/metrics.cc",
     "src/trace_processor/process_table.cc",
     "src/trace_processor/process_tracker.cc",
+    "src/trace_processor/proto_to_json.cc",
     "src/trace_processor/proto_trace_parser.cc",
     "src/trace_processor/proto_trace_tokenizer.cc",
     "src/trace_processor/raw_table.cc",