diff --git a/envoy/config/metrics/v3/stats.proto b/envoy/config/metrics/v3/stats.proto
index 9b4bb059..fb73e91f 100644
--- a/envoy/config/metrics/v3/stats.proto
+++ b/envoy/config/metrics/v3/stats.proto
@@ -220,7 +220,11 @@ message TagSpecifier {
   //
   // .. note::
   //
-  //   It is invalid to specify the same tag name twice in a config.
+  //   A stat name may be spelled in such a way that it matches two different
+  //   tag extractors for the same tag name. In that case, all but one of the
+  //   tag values will be dropped. It is not specified which tag value will be
+  //   retained. The extraction will only occur for one of the extractors, and
+  //   only the matched extraction will be removed from the tag name.
   string tag_name = 1;
 
   oneof tag_value {