diff --git a/mailbox/init.mailbox.rc b/mailbox/init.mailbox.rc
new file mode 100644
index 0000000..7659290
--- /dev/null
+++ b/mailbox/init.mailbox.rc
@@ -0,0 +1,8 @@
+on property:sys.boot_completed=1
+    chown system system /sys/kernel/tracing/instances/goog_cpm_mailbox
+    chown system system /sys/kernel/tracing/instances/goog_cpm_mailbox/trace
+    write /sys/kernel/tracing/instances/goog_cpm_mailbox/buffer_size_kb 512
+
+    chown system system /sys/kernel/tracing/instances/goog_nq_mailbox
+    chown system system /sys/kernel/tracing/instances/goog_nq_mailbox/trace
+    write /sys/kernel/tracing/instances/goog_nq_mailbox/buffer_size_kb 512