diff --git a/proto/Android.bp b/proto/Android.bp
index 65bccbb..7cf6ce7 100644
--- a/proto/Android.bp
+++ b/proto/Android.bp
@@ -27,3 +27,8 @@
     srcs: ["src/metrics_constants/metrics_constants.proto"],
     sdk_version: "system_current",
 }
+
+filegroup {
+    name: "system-messages-proto-src",
+    srcs: ["src/system_messages.proto"],
+}