diff --git a/cmd/soong_ui/main.go b/cmd/soong_ui/main.go
index b63918f..d3ef415 100644
--- a/cmd/soong_ui/main.go
+++ b/cmd/soong_ui/main.go
@@ -161,6 +161,7 @@
 	trace.SetOutput(filepath.Join(logsDir, "build.trace"))
 	stat.AddOutput(status.NewVerboseLog(log, filepath.Join(logsDir, "verbose.log")))
 	stat.AddOutput(status.NewErrorLog(log, filepath.Join(logsDir, "error.log")))
+	stat.AddOutput(status.NewProtoErrorLog(log, filepath.Join(logsDir, "build_error")))
 
 	defer met.Dump(filepath.Join(logsDir, "soong_metrics"))