diff --git a/automotive/evs/1.1/types.hal b/automotive/evs/1.1/types.hal
index f88d223..aafdb70 100644
--- a/automotive/evs/1.1/types.hal
+++ b/automotive/evs/1.1/types.hal
@@ -69,6 +69,8 @@
      * Time that this buffer is being filled.
      */
     int64_t timestamp;
+
+    vec<uint8_t> metadata;
 };
 
 /**