diff --git a/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig b/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig
index e258725..d0f7812 100644
--- a/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig
+++ b/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig
@@ -1,4 +1,5 @@
 package: "com.android.graphics.bufferstreams.flags"
+container: "system"
 
 flag {
   name: "bufferstreams_steel_thread"