diff --git a/protobufs/livekit_metrics.proto b/protobufs/livekit_metrics.proto
index 552aa44b..c0dcf25a 100644
--- a/protobufs/livekit_metrics.proto
+++ b/protobufs/livekit_metrics.proto
@@ -36,6 +36,8 @@ message MetricsBatch {
 }
 
 message TimeSeriesMetric {
+  // Metric name e.g "speech_probablity". The string value is not directly stored in the message, but referenced by index
+  // in the `str_data` field of `MetricsBatch`
   int32 label = 1;
   int32 participant_identity = 2;
   optional int32 track_sid = 3;
@@ -51,7 +53,6 @@ message MetricSample {
 }
 
 message EventMetric {
-  // Metric name e.g "assistant_interrupted", "speaking"
   int32 label = 1;
   int32 participant_identity = 2;
   optional int32 track_sid = 3;